* chore(design): pin impeccable rule ids and detector JSON shape as fixtures Real captures from a human-initiated `npx impeccable install` in a scratch directory (engine 0.1.3, linux-x64), never a runtime download: - test/fixtures/impeccable-antipatterns.json: upstream crates/live/assets/antipatterns.json at 87d8f6d6 (the state engine-v0.1.3 shipped), 61 rules, source commit recorded in `_source`. - test/fixtures/impeccable-detect-sample.json: `detect --json` over gstack's planted-slop fixture (source mode), paths normalized. - test/fixtures/review-eval-design-slop.dom.html + impeccable-detect-dom-sample.json: the same page served locally, dumped through the browse engine with the shared DOM-dump script, then scanned. Pins the load-bearing assumption that the static engine reads inline <style> in a .html file: the DOM scan yields the same id set as the source scan. - lib/dom-dump-script.ts: the one dump script both browser engines evaluate (IIFE, no single quotes). Folds CSSOM rgb() back to author hex so palette rules still fire, and removes inlined <link> nodes so the engine does not warn about an unresolvable stylesheet. Both verified against the engine. - test/fixtures/impeccable-detect-help.txt + impeccable-captures.meta.json: the flags, exit codes, finding fields, and re-capture protocol. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * refactor(design): typed slop catalog in lib/; AI_SLOP_BLACKLIST derived lib/design-catalog.ts is the single source of truth for gstack's design anti-pattern vocabulary: the 11 legacy blacklist lines (verbatim, flagged `legacyBlacklist`), every one of impeccable's 61 registry ids with gstack prose, tier, impact, confidence, grep heuristic, and /impeccable handoff, plus the gstack-only tells the LLM pass judges (hero metrics, identical cards, glassmorphism, missing states, unthemed browser surfaces, ...). `impeccableId` is set only when the id exists in the registry fixture, and `renderCatalog({style:'ids'})` brackets an id only then, so rendered prose never shows an id the detector cannot emit. Role-scoped font lists (OVERUSED_FONTS_DISPLAY, BANNED_FONTS, FONTS_BODY_UI_OK, FONTS_MONO_OK, FONTS_VERIFIED_FREE) live beside the entries. scripts/resolvers/constants.ts now derives AI_SLOP_BLACKLIST from the catalog. Generated output is byte-identical (bun run gen:skill-docs is a zero diff). Pure module: no I/O, no scripts/ imports, loading prints nothing, so bin/ can import it at runtime on every host. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(review): generate review/design-checklist.md from the catalog review/design-checklist.md was hand-written and its own header admitted it drifted from DESIGN_METHODOLOGY category 9. It is now rendered by scripts/resolvers/design-checklist.ts from lib/design-catalog.ts: category 1 lists every grep-detectable slop entry plus the legacy blacklist lines, sorted HIGH/MEDIUM/LOW, each with its heuristic and, where the detector knows the rule, its bracketed id (27 items, up from 6). The font blacklist renders from BANNED_FONTS. Categories 2-5, Instructions, Classification, Output Format, and Suppressions keep their prose. Title and slop heading are unchanged (test/skill-e2e-review.test.ts and hosts/opencode.ts key on them). gen-skill-docs writes the file for the Claude host only (a Claude-side runtime asset; other hosts copy or inline the render), honors --out-dir, and reports STALE/FRESH under --dry-run like sections do. test/design-checklist-sync.test.ts pins committed == generated, the host/out-dir scoping, and the dry-run freshness line. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): modes, craft-floor reflexes, calibration, catalog in doctrine DESIGN_HARD_RULES: the classifier names four visitor modes (Persuade, Operate, Read, Experience, plus Hybrid per section) and keeps the MARKETING/LANDING PAGE and APP UI aliases; Read and Experience get three rules each; a "Reflexes no detector catches" block (browser surfaces, one authored motion moment, depth has an offset, tinted secondary text, space above headings, light-or-dark from the use scene) and the three-looks calibration follow the universal rules. The slop section renders the 11 legacy lines plus the detector rule ids and judgment tells from the catalog; in design-review, which also renders DESIGN_METHODOLOGY, it becomes a one-line pointer so the catalog is paid for once. Header counts are computed, not hardcoded. DESIGN_METHODOLOGY: category 9 renders the catalog in three registers (legacy lines verbatim, detector rules that need judgment with bracketed ids, gstack-only judgment tells as prose, polish-level ids on one line); categories 5 and 7 carry the browser-surface and one-motion-moment reflexes; the typography overused-face item points at [overused-font] with the role-scoped exception. The consultation Codex prompt's anti-slop line reads from the catalog. Budget: design-review eager 25.6K -> 27.0K (ceiling 27,984), plan-design-review unchanged at 17.4K; no carve-guard or context-budget re-baseline needed; ship goldens unchanged (ship never renders the hard rules). Derived from pbakaus/impeccable reference/craft-floor.md + new-work.md (Apache-2.0), rewritten. See NOTICE.md (commit 12). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design-consultation): font procedure, role-scoped overused list, color strategies The proposal section stops handing out a font menu. "Choosing faces: a procedure, not a menu" names the subject's world, shortlists per role, strikes the overused list for that role, verifies availability in-session, and states the loading strategy. {{OVERUSED_FONTS}} renders the role-scoped lists from lib/design-catalog.ts: overused as display (the detector's overused-font set plus the training-data defaults), fine as body/UI on an Operate or Read surface, mono for data and code, banned in any role, and a short verified-free list with its verification date. Color approaches become Restrained / Committed / Full palette / Drenched. The anti-convergence directive drops light-vs-dark as a dial (it comes from the use scene) and the three-looks calibration sits under Your Design Knowledge. The slop list is {{DESIGN_SLOP_BULLETS}}: prose from the catalog, no rule ids, polish-level tells omitted. design-html's "Never include (AI slop blacklist)" list keeps its literal (carve guard) and each line now carries a trailing <!-- id --> naming a catalog entry, pinned by test/design-catalog.test.ts so the last surviving duplicate is derived-by-test. Both resolvers are registered and listed in ARCHITECTURE.md. No carve-guard or budget re-baseline needed. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(bin): gstack-design-detect wrapper + design_detector config key bin/gstack-design-detect.ts finds and runs an impeccable engine the user installed; it never installs, downloads, or executes anything that could download. `probe` reads only: config (design_detector off → DISABLED), IMPECCABLE_BIN (absolute, realpath outside the repo and cwd), a PATH walk (absolute entries outside the repo; a #! shim counts as launcher-present, never READY), the ~/.impeccable/bin/<newest semver>/ cache, and the engine installed beside a skill launcher (scripts/bin/<os>-<arch>/impeccable, the layout a real install produced). It reports IMPECCABLE_SKILL, host-aware IMPECCABLE_HOOK (+ HOOK_OTHER), the ignore lists from .impeccable/config*.json, IMPECCABLE_ENGINE_UNTESTED for versions outside the fixture set, and a hint only when a launcher exists without its engine. `scan` re-probes, refuses URLs and anything outside the repo root or the design-report allow-list (realpath, so symlinks cannot escape), derives `--changed <base>` targets NUL-safely through git and lib/frontend-scope.ts, batches 100 absolute paths per engine call with stdin ignored, a SIGKILL timeout, a 50 MB stdout cap, and sanitized length-capped fields, then prints one normalized JSON document (--format gstack) or the engine's bytes (--format raw); DETECT_TOP (fenced as untrusted content), DETECT_SUMMARY, and DETECT_EXIT go to stderr; exit code passes through with 1 over 2 over 0; exit 3 is a gstack bug. `rules` prints the mapped set. Every run appends a content-free line to the local analytics file. lib/design-detect-contract.ts owns every sentinel string, the limits, and the normalized-finding shape (pure module); test/design-detect-contract.test.ts asserts every sentinel-shaped token the agent can read exists there. lib/frontend-scope.ts mirrors gstack-diff-scope's frontend arm, pinned by a parity test that runs the bash script. bin/gstack-config gains design_detector (auto | off, default auto, invalid values rejected with the file unchanged). test/fixtures/fake-impeccable.ts is the env-driven engine stand-in; test/gstack-design-detect.test.ts covers READY/NOT_CACHED/ NOT_AVAILABLE/DISABLED, env trust (.env never loaded, in-repo IMPECCABLE_BIN ignored), newest-semver cache, hook and ignore detection, refusals, exit passthrough, raw byte-identity, normalization, the display cap, timeout, parse errors, diagnostics, --changed, and analytics. The egress scanner test records the wrapper as a documented non-sink. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): {{DESIGN_DETECTOR}} wired into design-review, ship review-lite, review army, design-html The user-installed impeccable engine becomes a deterministic pre-pass in four skills, through one resolver with three renders: {{DESIGN_DETECTOR}} (the probe block and how to read every sentinel), {{DESIGN_DETECTOR:phase0}} (design- review's mechanical scan), {{DESIGN_DETECTOR:gate}} (design-html's bounded slop gate). Every rendered invocation is `bun --no-env-file run <bin>/gstack-design- detect.ts ... --host <host>` and every scan ends with the DETECT_EXIT_CODE echo so exit 2 (findings) never aborts a block. design-review: probe in Setup; Phase 0 picks DOM mode (URL target) or source mode (diff-aware, no URL) once; source mode scans the changed frontend files in Setup, DOM mode never reads source (Rule 4). Phase 3 gains a DOM-dump step per page: both browser engines load the shared script from lib/dom-dump.js (Aside splices it into a double-quoted repl script; the fallback engine copies it into a temp dir for `$B eval --out --raw`), the dump is size-capped, run through gstack-redact (a HIGH finding skips the page), and persisted under $REPORT_DIR/dom/$RUN_ID/; one scan runs after the last page, labeled "static scan of the rendered DOM; cross-origin CSS not resolved". REPORT_DIR honors GSTACK_HOME so the wrapper's allow-list and the report dir agree; RUN_ID is set once in Setup. design-baseline.json is schemaVersion 2 with runId, targetSet, base, and a detector block (mode, engine, byRule, byPage), written temp+rename with a per-run copy; Regression Output diffs ids only when mode and target set match, caveats an engine change, and calls live-page count deltas advisory. Phase 7 hands deferred detector findings to the `handoff=` command the scan printed; Phase 9 recomputes the same way and deletes the dumps unless --keep-dom; Phase 10 reports `Detector: N → M`. ship review-lite gains step 0 (probe, `scan --changed <base>`, tier buckets, detector + checklist dedupe, advisory and ignored never count) and a `detector` count in its log payload; the PR body gets a Detector line (rule ids and counts only). The Review Army Design specialist runs the mechanical pass at the top of review/design-checklist.md, which now carries it. design- html probes after DESIGN_SETUP and runs the one-pass gate before screenshots. lib/dom-dump.js is generated by gen-skill-docs from lib/dom-dump-script.ts (Claude host, --out-dir aware, dry-run freshness) and pinned byte-equal, so the prose never carries the script. The contract gains DETECT_JSON, DOM_DUMP_OK, and the self-describing set; its test now checks both directions. Budget: design-review eager 25.6K → 28.5K. The plan's target was +2.5K; after the levers it named (ids-only detector rules, no inline script, trimmed prose) it lands at +2.87K, and the remainder is doctrine and detector wiring, so the ceiling moves to the captured 31,319 for design-review only (the full capture would also have loosened 21 ceilings this branch never touched; those stay). design-html skeleton re-baselined to 54,000 (measured 53,592). Codex and Factory ship goldens refreshed (review-lite step 0 and the PR-body line render inline there). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): catalog never-lines in the mockup prompt Ten catalog ids carry `mockupNever` (kicker-above-heading, icon-tile-stack, gradient-text, ai-color-palette, cream-palette, nested-cards, dark-glow, pulsing-dot, identical-cards, hero-metrics) and lib/design-catalog.ts exports their deduped plain-English names as MOCKUP_NEVER_NAMES. briefToPrompt() in the design binary appends "Never: <names>." before its fixed tail, so `$D generate | variants | evolve` stop reaching for purple gradients, icon tiles, and cream defaults before the comparison board opens. The binary still bundles (`bun build --compile design/src/cli.ts`); ./setup rebuilds it. design-html's Never-include list now covers every mockupNever id (kicker / icon tile, hero metric rows, gradient text, cream palette, nested and identical cards, glow and pulsing dots), each line tagged with its catalog ids; test/design-catalog.test.ts pins the exact ten flags, the deduped names, and that the template list is a superset. New design/test/brief.test.ts pins the prompt shape. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(lib): open DESIGN.md reader/writer + gstack-design-md bin lib/design-md.ts implements the open DESIGN.md format (google-labs-code/ design.md, Apache-2.0): YAML front matter with the five token groups (colors, typography, rounded, spacing, components) and eight canonical `##` sections in spec order (Overview, Colors, Typography, Layout, Elevation & Depth, Shapes, Components, Do's and Don'ts), aliases mapped, extras preserved after them in their original order. parseDesignMd never throws (unparsable front matter → `unknown` with a reason); renderDesignMd re-emits the preserved front matter bytes and only `convert` writes fresh YAML through a small block-style emitter (Bun.YAML.stringify is flow style); upsertSection splices the body only; tokensFlat resolves `{path}` references to primitives and reports group, self, dangling, and cyclic refs as DESIGN_MD_TOKEN_REF_INVALID. convertLegacy turns gstack's pre-spec DESIGN.md into the open format: Product Context and Aesthetic Direction fold into Overview, Typography roles become display/body/label/mono tokens (mono carries fontFeature: tnum), Color hexes become colors (mode-qualified labels keep their qualifier; strategy lines are not colors), the Spacing scale and Layout radii become spacing and rounded, Motion / Grain Texture / Decisions Log survive as extras. The format marker lives inside the file: a YAML comment on line 2 of a spec file, an HTML comment on line 1 of a legacy file. bin/gstack-design-md.ts: `check` (DESIGN_MD_FORMAT + marker), `convert [--write]` (backup to DESIGN.md.legacy.bak, temp+rename, refuses ambiguous input with DESIGN_MD_CONVERT_REFUSED), `tokens` (flat JSON), `mark <spec|legacy-keep>`. Exit 3 + DESIGN_MD_INTERNAL_ERROR is a gstack bug. design/src/memory.ts: updateDesignMd upserts "Extracted Design Language" through the lib (front matter bytes untouched, canonical order kept, section replaced on rerun) and creates a spec skeleton with tokens from the extraction when no file exists; readDesignConstraints leads with the flat tokens and the Overview for spec files. The design binary still bundles. test/design-md.test.ts pins all of it against gstack's own DESIGN.md. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): write/read DESIGN.md in the open spec; persisted format choice gstack's design skills now write DESIGN.md in the open DESIGN.md format and read tokens from it. {{DESIGN_MD_CHECK}} renders the format check through bin/gstack-design-md.ts: design-consultation's Phase 0 settles the format once (spec → update tokens in the front matter; legacy without a marker → one AskUserQuestion: convert with a .legacy.bak, keep the legacy file, or start fresh; the answer is written into the file as the format marker so no skill asks again; a marker already present is obeyed silently; unknown → prose; missing → Phase 6 writes one). Phase 6's template is the spec form: YAML front matter with name, description, and exactly the five token groups (colors, typography.display/body/label/mono with fontFeature: tnum on mono, rounded, spacing, components with {path} references), then Overview (Creative North Star, product context, mode per surface, references, key characteristics), Colors (opening with the Restrained / Committed / Full palette / Drenched strategy), Typography, Layout, Elevation & Depth, Shapes, Components, Do's and Don'ts, plus gstack's Motion and Decisions Log as extras; the template ends with a check that the file parses as `spec`. design-review runs the `:calibrate` form in Setup: a spec file's flat tokens are the calibration source (a value present in the tokens is never a finding), the marker is respected, and conversion is never offered there; its DESIGN.md export writes the spec form. design-html's token extraction writes the spec form and respects an existing choice. review/design-checklist.md category 5 and ship's review-lite step 1 name `gstack-design-md tokens` as the calibration source; plan-design-review Pass 5 cites tokens by path when front matter exists. The contract owns the bin's DESIGN_MD_MARKER / REASON / WRITTEN / BACKUP lines; the contract test's pending list closes. Carve guard: design- consultation skeleton 66,500 → 67,500 (measured 67,014; +1,508 B against the 1.5 KB cap). Codex and Factory ship goldens refreshed (review-lite step 1). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): PRODUCT.md prefill + /impeccable handoffs design-consultation's context gathering and design-shotgun's auto-gather read PRODUCT.md (impeccable's product-context file) when it exists: it counts as the user's prior answers, gets confirmed in one line, and is never re-asked. Neither skill opens `.claude/skills/impeccable/**`; PRODUCT.md and DESIGN.md are the shared surface, and impeccable's prose never loads inside a gstack skill. Handoffs: ship's review-lite ends each NEEDS INPUT detector row with the `handoff=` command the scan printed (`/impeccable <cmd>`) when the probe reported IMPECCABLE_SKILL: present, recommending the command and never opening its files; design-review's Phase 7 does the same for deferred findings, and `design_detector: off` silences handoff lines with the rest. Codex and Factory ship goldens refreshed. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * chore(design): convert gstack's own DESIGN.md to the open spec `gstack-design-md convert --write` on the repo's DESIGN.md: tokens in YAML front matter (typography.display/body/label/mono, colors with their light/dark qualifiers, spacing scale, rounded scale), Overview from Product Context and Aesthetic Direction, Colors / Typography / Layout as canonical sections, Motion, Grain Texture, and Decisions Log preserved as extras, format marker on line 2. Hand-checked; `check` reports spec with no token-reference errors. A Decisions Log row records the conversion and that DM Sans stays the body face: it is on the overused-as-display list, and body/UI use on an Operate surface is the allowed exception under the role-scoped rule. The pre-conversion file lives on as test/fixtures/design-md-legacy.md, which test/design-md.test.ts now uses for its legacy cases; the converted root file is asserted to be spec. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * docs: NOTICE, Apache license text, README interop, project structure NOTICE.md names what gstack derived from impeccable (rule ids and names in the catalog and the registry fixture; the visitor modes, craft-floor reflexes, and calibration in the design resolvers; the font procedure in the consultation template) and from Google's DESIGN.md specification (the format lib/design-md.ts implements), states that gstack does not distribute or audit the impeccable engine, and points at licenses/Apache-2.0.txt (verbatim). README: the design-consultation, design-review, and design-html rows say what changes when impeccable or the open DESIGN.md format is in play, and a "Works with impeccable" paragraph explains the pre-pass, the shared ids, PRODUCT.md and DESIGN.md as the shared surface, the handoffs, the no-nag posture without impeccable, and the off switch. docs/skills.md gets the detector paragraph under /design-review. docs/PROJECT_STRUCTURE.md lists the new lib and bin files, NOTICE.md, and licenses/. docs/designs/IMPECCABLE_INTEROP.md promotes the CEO plan (its ~/.gstack copy is flipped to PROMOTED) with a "what shipped" summary. TODOS.md files the seven deferrals from the reviews: the design-review Phases 7-11 carve (the budget lever, with the +2.87K vs 2.5K landing recorded), the Bun .env audit across bin/*.ts, the Kiro bin/lib gap, the $D check slop rubric, taste-profile interplay, the CEO Section 11 bullets, and the scan cache. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * test: touchfiles, tiers, shim E2E, real-engine fixture Touchfiles: the catalog, contract, detector bin, checklist resolver, review- army resolver, and DESIGN.md lib join the dep lists of review-design-lite, design-review-fix, the design-consultation cases, and plan-design-review-no- ui-scope, so editing any of them re-selects the tests that read their output. Three new E2E keys: design-review-detector-shim (gate; source mode on a feature-branch diff), design-review-detector-shim-dom (gate; DOM mode: the slop fixture served on loopback, dumped through the browse binary with lib/dom-dump.js, persisted under a GSTACK_HOME-scoped REPORT_DIR, scanned once; self-skips when browse/dist/browse is absent), and design-html-slop-gate (periodic; one fix pass, at most two scans, remaining findings accepted with reason). Every case reaches the engine through test/fixtures/fake-impeccable.ts via IMPECCABLE_BIN from outside the temp repo, reads extracted skill sections (never a whole SKILL.md) with the installed bin path rewritten to this checkout, and asserts the probe ran, the right scan verb ran, `npx impeccable` never did, and the output carries FINDING rows tagged [ai-color-palette] and [low-contrast]. review-design-lite gets the fake engine and an eighth tally signal for a detector row; its 4-hit threshold is unchanged. test/gstack-design-detect.test.ts evaluates design-review's REPORT_DIR expression with GSTACK_HOME set and proves a dump under it is accepted by the wrapper's allow-list. The sample fixtures were real captures from commit 1 (engine 0.1.3), so there is nothing hand-written left to swap. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-detect): never execute a repository-controlled engine; allow-list --changed targets; sanitize engine text Pre-landing review findings (security + checklist), all reproduced before the fix: - A checked-out branch could commit `.claude/skills/impeccable/scripts/bin/<os>-<arch>/impeccable` and the probe would report READY and `scan` would run it, with the agent's full environment. Launchers and sibling engines under the repo or cwd now count as "skill present" only (IMPECCABLE_NOT_CACHED: repository-local install, and the hint never names a repository-local launcher to run); only HOME-rooted installs, IMPECCABLE_BIN, the cache, and PATH entries outside the repo qualify, all by realpath. The engine now sees a minimal environment (PATH, HOME, TMPDIR, locale, IMPECCABLE_*), never the agent's tokens. - `scan --changed <base>` pushed git-derived paths without the allow-list, so a committed symlink with a frontend extension handed a file outside the repo to the engine. Derived targets now go through the same allow-list as explicit ones and symlinks named by git are refused outright. - A repo-controlled `scripts/VERSION` with embedded newlines forged probe lines; the version is trusted only when it is semver, and every printed version is sanitized. Engine text containing the untrusted-content fence or a `SENTINEL:` prefix is neutralized with a zero-width space (neutralizeSentinels in the contract), so page text cannot close the envelope or forge a probe line. - A failing `git diff <base>...HEAD` (unknown or unfetched base) was swallowed and read as "no frontend changes"; it is now DETECT_REFUSED with exit 1. - The scan allow-list root follows `${GSTACK_HOME:-$HOME/.gstack}` like the templates and gstack-slug (config.yaml keeps gstack-config's STATE_ROOT precedence); a quoted or commented design_detector value reads correctly. Smaller: raw engine chunks are kept only in --format raw; diagnostics are capped (200 kept, 20 echoed); the engine identity hash reads size + 4 MB, not the whole binary; PROBE_STEP and ENGINE_STDERR are contract sentinels; the --verbose gate covers every probe step; analytics use one sentinel vocabulary; bare limits live in DETECT_LIMITS. The fake engine's knobs are IMPECCABLE_FAKE_* (so they pass the minimal env) and a shared test helper installs it. New tests cover each item above plus clean runs, `{}` parse errors, missing paths, and the 50 MB stdout cap. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-md): mark and updateDesignMd never rewrite the user's file; refuse a contradictory mark renderDesignMd re-sorted canonical section names into spec order on every render, so `gstack-design-md mark legacy-keep` (the "leave it alone" answer) and the design binary's mockup extraction reordered a legacy DESIGN.md (Typography and Layout jumped to the top) and normalized its whitespace, while the bin promised "body bytes untouched". `mark` now splices only the marker line (insertMarker) and `updateDesignMd` splices only its own section (spliceSection); every other byte of an existing file is preserved, and spec order applies only to files that open with front matter. `mark` refuses a choice that contradicts the file's format (spec on a non-spec file, legacy-keep on a spec file) with DESIGN_MD_CONVERT_REFUSED, exit 2, file unchanged. convertLegacy keeps intro prose under the title instead of rebuilding the preamble from the title alone. detectFormat returns a machine-readable `code` beside the prose reason (the bin no longer branches on reason text); the marker regexes derive from FORMAT_MARKER_PREFIX and FORMAT_CHOICES; the hop limit and legacy identity headings are named constants; slug is exported and reused; both writers use lib/fs-atomic.ts. Tests pin byte identity for mark and updateDesignMd on the legacy fixture, the refusal paths, and the preserved preamble. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design): run the DOM dump in the page on both engines; align doctrine with the catalog The DOM-dump script is an arrow function, not a self-calling IIFE: Aside's `pg.evaluate($_DUMP)` receives the function and runs it in the page (the IIFE form executed in the repl sandbox, where `document` does not exist), and the fallback engine calls it with `$B js "($_DUMP)()" --out --raw`. Hygiene widens to every URL-bearing attribute (src, srcset per candidate, poster, action, formaction, data, ping, cite lose their query strings and fragments) and to data: URLs inside existing <style> nodes. The persist and scan blocks restate REPORT_DIR and RUN_ID literally instead of relying on a shell variable from an earlier block; the baseline's targetSet is defined per mode (repo-relative paths in source mode, page slugs in DOM mode) so DOM-mode deltas can match; the PR-body Detector line lists the states the probe can actually print. The DOM fixture is re-captured with the new script from outside the repo (the engine walks up from cwd for DESIGN.md, which the metadata now records). Doctrine contradictions the design specialist found: the landing-page motion rule matches the one-authored-moment reflex; the background rule names the catalog's halo/spotlight/stripe/grid slop instead of asking for gradients; the universal font rule is scoped to the display voice with the body/UI exceptions; "two typefaces max" allows the mono; the methodology's banned-font line renders BANNED_FONTS; Courier New is banned outright; the Brutalist, Retro-Futuristic, and Playful menu entries stop recommending system stacks, glow, and bounce; the coherence nudge uses the decoration vocabulary; Path A's gate names the display voice; font-loading prose points at the source the procedure verified; centered-everything is MEDIUM (an aggregate heuristic); the mockup guard reads "Never by default (unless the brief above asks for it)". The checklist's AUTO-FIX list renders the catalog's auto-fix rules; category 9 and the Hard Rules pointer count from the same partition helpers (detectorSlopEntries, judgmentTellEntries); the handoff list renders from HANDOFF_COMMANDS; a missing catalog id fails gen-skill-docs by name. gstack's own DESIGN.md gains border tokens and Decisions Log rows for its live-feed pulse and 11px mono labels. frontend-scope is case-sensitive like the bash arm. gen-skill-docs shares one emitGenerated helper for sections and lib-derived assets; renderCatalog keeps the one style with a caller. Tests: shared sliceBetween that fails on a missing end marker, the slop-gate fixture's real end marker, an isolated browse daemon for the DOM-mode E2E, the DOM hygiene test gated to CI or opt-in, docs notes for the two superseded plan sentences. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-detect): an engine is a file named impeccable outside the project; DOM dumps scan without inline ignores Second review cycle, security + checklist: - IMPECCABLE_BIN=/bin/sh (or node) was READY, and `detect` with cwd=repoRoot made the interpreter run the repository's own `detect` file. Every engine candidate (env override, PATH entry, cache, sibling) is now judged by the realpath of the FILE and must be named impeccable[.exe]; PATH and cache candidates that resolve into the repository are skipped like the others. "Inside the project" means the repository, or cwd when cwd is a project directory: HOME and its ancestors are exempt, so a URL-mode review launched from HOME still finds the HOME-rooted installs. - A base for --changed that starts with `-` was spliced into git argv (`--output=<file>` made git write a file and report no changes); an option- like or missing base is DETECT_REFUSED (not a ref name), exit 1, and the parser no longer defaults a missing value to main. - DOM dumps are the audited page's bytes, so an in-file `impeccable-disable` comment there is page-controlled: batches under the designs root run with --no-inline-ignores, repository batches keep the project's own ignores. - neutralizeSentinels covers the shapes it missed (bare sentinels such as DETECT_TOP total= and IMPECCABLE_DISABLED, the DETECT_EXIT_CODE= echo, the `[rule-id] impact=` group header) in one precompiled alternation instead of 37 replaceAll passes per field; only kept findings are normalized, and the summary's total stays the engine's count. - The minimal engine environment compares keys case-insensitively on Windows (process.env enumerates Path, SystemRoot there) and passes PATHEXT, COMSPEC, HOMEDRIVE, HOMEPATH, PROGRAMDATA. - Bare 64s move into DETECT_LIMITS; the unused SentinelName type is gone; the header states the directory-target contract (the engine's own walk). Tests: an interpreter as IMPECCABLE_BIN never runs the repo's detect file; a PATH symlink into the repository is never READY; option-like and empty bases are refused with no file written; the designs-root batch carries --no-inline-ignores and the repo batch does not; the identity label is deterministic per binary; the bare-sentinel and header shapes are neutralized; the installed fake engine works without IMPECCABLE_FAKE_OUTPUT (the helper copies the sample beside it); two tests clean up in finally. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-md): text-level edits keep CRLF, one section-boundary rule, control characters quoted - insertMarker and spliceSection normalized every line ending to LF, so a CRLF DESIGN.md came back rewritten beyond the one line they promised to touch. Both detect the file's dominant line ending and restore it. - parseDesignMd and spliceSection each walked headings with their own fence tracking; they now share headingLines (and upsertSection shares headingMatches). An unclosed ``` is treated as prose for that file: it used to swallow every later section on a splice. - A token value carrying a control character (an LLM-extracted font family with an embedded newline) was emitted as a bare multi-line scalar that Bun.YAML rejects, turning a freshly written DESIGN.md into frontmatter-unparsable; needsQuotes routes it through the quoted form. - The marker-line regex variants are built once beside YAML_MARKER_RE; the dead setMarker export and a no-op ternary are gone; LEGACY_HEADINGS derives from the identity list; the header diagram names the text-level editors as the write path for user-owned files; the bin validates and prints the mark choices from FORMAT_CHOICES. Tests: CRLF round-trips for both editors, a fenced ## inside a section and an unclosed fence, and a newline-bearing scalar parsing back. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design): Aside dump script stays single-quoted; redaction gate sized to the dump cap; doctrine made consistent - The DOM-dump Aside block was the only double-quoted `aside repl` script in the tree (to splice the function text), which put the agent-filled <url> inside a double-quoted bash string: a same-origin href carrying $(...) would run in the reviewer's shell when Phase 3 opened that page. The script is single-quoted like every other Aside script and the function text enters through a closed-quote segment ('"$_DUMP"'); the fallback line is `$B js '('"$_DUMP"')()'`. A free test pins that no rendered Aside script opens with a double quote. - The persist block capped dumps at 10 MiB but ran gstack-redact with its 1 MiB default, so every real page between the two was deleted as DOM_DUMP_REDACTION_BLOCKED; the gate passes --max-bytes at the dump cap and blocks on any exit other than clean (0) or MEDIUM (2), so a redaction tool that fails to run can no longer fall through to "persist". - Dump hygiene removes <template> and <noscript> subtrees (invisible to the attribute walk), inline on* handlers, and the cross-origin <link> nodes already named in the note, so the file handed to the engine references no remote stylesheet. - Doctrine: the Codex design-voice prompts said "2-3 intentional motions" against the one-authored-moment rule; the overused-display heading scoped its ban to Persuade/Experience while the catalog and hard rules ban it everywhere; design-consultation's Important Rule 4 still said "as primary"; design-html's blacklist header is now "Never include by default" with the mockup/DESIGN.md/user-ask override the catalog grants; the slop gate honors Decisions Log and Do's and Don'ts blessings like /review does; the landing "poster" line says poster in stance, not type size; the design binary's variant dials no longer flip light/dark for variety; gstack's DESIGN.md rows name data labels (UI labels stay the DM Sans token) and call the skill-bar fill and hovers functional transitions. - design-review names how the base branch is found (gh pr view, then the repo default; never main) for the source-mode scan and the diff-aware mode. - frontend-scope matches the config globs at the repo root only, like the bash arm; the parity test carries nested samples. - Cleanups: renderCatalog's stale style option, an unused import, the identity-map bannedFontNames, the checklist header's "same entries" claim, the catalog header's consumer list, the orphaned main() docstring, the plan doc's IIFE bullet. design-html's skeleton ceiling is re-measured (54,184) for the two doctrine sentences. Tests: AUTO-FIX rendering from the catalog, the E2E slice markers checked in the free suite, the hygiene cases for templates/noscript/handlers/remote links, and the review E2E counting detector rows separately from the seven checklist plants. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-detect): project means below HOME; only page dumps drop inline ignores; a whole-scan budget; prototype-safe rule counts Third review cycle + Red Team, all reproduced before the fix: - With no repository, the wrapper adopted cwd as the repo root, so a review launched from HOME (URL mode can run from anywhere) rejected every HOME-rooted install as "repository-local", reported the user's own skill install with the wrong hint, and, for targets, accepted all of HOME (~/.ssh/id_rsa scanned). A project directory is now one strictly below HOME: `git init ~` never turns the user's installs into repository files, and from HOME only the designs allow-list qualifies as a target. - --no-inline-ignores keyed on "not inside the repo", which misclassified dumps when GSTACK_HOME sits under the repo and stripped the design-html gate's own `<!-- impeccable-disable -->` from finalized.html. Targets are classified as project / dom-dump (designs/<audit>/dom/**, the page's bytes) / artifact (other designs/ files, gstack-authored); only dumps drop inline ignores. - A repository's .impeccable/config.json can hide rules from the review; detector.ignoreValues was never surfaced. The probe prints IMPECCABLE_IGNORED_VALUES beside the rules, and the prose stops calling repo-config ignores "a decision the user made". - An engine id named `constructor` corrupted byRule through Object.prototype and `__proto__` counts vanished; byRule is a null- prototype object and an id that fails the shape check is `unmapped` as a key too. - Batches ran with no total budget (10,000 un-ignored files: hours). The scan stops at 5x the per-batch timeout with DETECT_TIMEOUT and exit 1. - The scan JSON carries an `untrusted` list of the engine- and page-derived fields, so the agent reading past the fenced DETECT_TOP block is told what is evidence. - The PATH walk keeps launcher-present for a .cmd wrapper or a differently named real file (the name gate applies to READY only). Tests: probe and scan from a fake HOME (cache READY, HOME file refused, dump scanned without inline ignores), artifact vs dump batches, prototype-member ids, the whole-scan budget over 11 batches, ignoreValues surfaced, the `untrusted` field. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-md): edits follow a symlinked DESIGN.md, keep the BOM and the majority line ending, refuse an unclosed fence - `mark`, `convert --write`, and the design binary's extraction replaced a symlinked DESIGN.md (a docs-site layout) with a regular file and left the real target untouched; both writers resolve the link first. - A single stray CRLF flipped a whole LF file to CRLF: the editors now keep the majority ending. A UTF-8 BOM broke format detection and ended up mid-file after `mark`; it is recognized and kept at byte 0. - Re-running `mark` on a marked file deleted the blank line after the marker (`\s*$` matched across the newline); the marker regexes use `[ \t]*`. - Fences: readers follow markdown (an unclosed fence runs to EOF); the text-level editors refuse such a file with DesignMdEditRefused (DESIGN_MD_EDIT_REFUSED) instead of splicing the wrong section, and the design binary reports that and leaves the file alone. - needsQuotes also quotes a scalar containing ` #` (an inline-comment shape parsed back as a truncated value). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design): dump hygiene covers CSS URLs, srcdoc, and handlers; dumps persist owner-only; ignore prose treats repo config as evidence - The dump script cuts query strings from CSS url() in style attributes, <style> nodes, and the inlined stylesheets (signed asset URLs), empties srcdoc, and covers background and xlink:href. - Persisted dumps are chmod 600; MEDIUM redaction findings persist (an authenticated page shows emails) and the prose says so; earlier runs' dumps are swept before the first dump of a run unless --keep-dom. - The Aside dump prose asks for `'` in a pasted URL to be percent-encoded (a bare single quote would end the script) and never to paste an unread URL. - Repo-config ignores are evidence, not settled decisions, in /review, /ship, and design-review's probe prose; the scan JSON's text fields are named as untrusted. - design-html's skeleton ceiling is re-measured (54,545); ship goldens refreshed for the checklist prose. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-detect): audit directories scan as dumps; scans print probe lines on stderr; refused base always exits 1; PATH loses project entries Adversarial review (Claude subagent): - A DIRECTORY target under designs/ (the audit dir, which the prose hands the agent as REPORT_DIR) classified as an artifact, so the engine walked its dom/ subtree WITH inline ignores honored. Any directory under designs/ is now scanned as dumps. - A scan whose probe no longer finds an engine wrote its sentinel lines to stdout and exited 0, so `scan > "$_DJ"` captured "IMPECCABLE_NOT_AVAILABLE" as the scan result and the rendered bash read a clean scan. Probe lines go to stderr on every path; stdout is the JSON document or nothing. - A refused --changed base exited 0/2 when explicit targets were also given; it folds into the exit code (1 over 2 over 0). A trailing --changed no longer defaults to main. - A hand-edited `design_detector: Off` re-enabled the detector; the value is compared case-insensitively. - The engine inherited PATH entries inside the project (a direnv .envrc adding node_modules/.bin); those are filtered like every other project path. - DOM_DUMP_MISSING names the case where the dump script wrote nothing. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design-md): markdown edge cases: rule-opened legacy files, spaced fences, ~~~ blocks, duplicate headings, YAML 1.2 numerics - insertMarker keyed on "starts with ---", so a legacy file opening with a horizontal rule got a `# gstack:` line rendered as a heading that the parser then never read back (the conversion question re-asked every run). It keys on parsed front matter. - A closing front-matter fence with trailing spaces (`--- `) made a valid spec file `unknown`; the closer is any whole `---` line. - `~~~` fences hid nothing, so a `## ` inside one was a section boundary and a splice corrupted the fence; both fence kinds are tracked and only the same kind closes an opener. - convertLegacy silently kept the first of two `## Layout` bodies (and one of `## Color` / `## Colors`); it refuses with DESIGN_MD_CONVERT_REFUSED and the bin leaves the file and writes no backup. - needsQuotes covers 0x / 0o / .inf / .nan (YAML 1.2 numerics that changed type on round-trip); emitYamlBlock throws on an object inside an array instead of writing "[object Object]". - The design binary coerces the model's extraction JSON at the parse boundary (null names, missing arrays) so the paid call's result survives. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(design): print and alternate stylesheets are not scanned as page CSS; no cross-run dump sweep; probe-state and design-system caveats in prose - The dump inlined every linked sheet's rules as active CSS, so a print sheet's 12pt black text or an alternate theme produced tiny-text and palette findings the user never sees; disabled and alternate sheets are skipped and a media-scoped sheet is wrapped in its @media block. - The cross-run dump sweep is gone: two same-day reviews shared REPORT_DIR and one run's sweep deleted the other's dumps mid-audit. Dumps stay per run, owner-only, deleted after Phase 9 unless --keep-dom (now defined in the prose), and an interrupted run's dumps wait for the user. - Prose: design-system-* rows in DOM mode compare the page to THIS repo's DESIGN.md and apply only to the repo's own app; an empty scan JSON with exit 0 means the probe state changed since Setup (read stderr); the persist block names a missing dump instead of mislabeling it as a redaction block. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * v1.82.0.0: impeccable interop, detector pre-pass, open DESIGN.md format Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * docs: update project documentation for v1.82.0.0 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * changelog: name the measure behind the test-count row Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(test): drive the DOM hygiene test through Playwright Chromium directly Under the six-shard CI free suite the test's private browse daemon never answered its health probe (two minutes of retries), failed the shard, and starved two unrelated test files into failing before the runner's timeout. The test now launches the same Chromium through playwright-core and calls the dump function with page.evaluate, the way Aside's pg.evaluate does: no state file, no daemon, no health window. It self-skips when the Playwright Chromium bundle is absent. Two more hygiene rules are pinned along the way (print sheets keep their @media, alternate sheets are dropped). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(test): compare gen-skill-docs paths with forward slashes on Windows gen-skill-docs prints repo-relative paths with the OS separator, so the checklist render pins (`GENERATED: review/design-checklist.md`) failed on the Windows lane against `review\design-checklist.md`. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(test): assemble the planted PEM block at runtime The quality gate scans every added line of the PR diff through gstack-redact; the redaction test's literal PEM header was a HIGH finding on our own test file. The block is now built from fragments, so the scanned file never carries a key-shaped line while the test still plants a HIGH finding. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design-detect): consent-gated engine install, checksum-pinned and receipted `gstack-design-detect.ts install` is the one download gstack makes, and only after a design skill's one-time question got a yes. It fetches the engine version gstack has tested (0.1.3) for this platform from impeccable's own GitHub release, verifies it against the checksum pinned in lib/design-detect-contract.ts (all five platforms, captured from the release's .sha256 sidecars; linux-x64 equals the fixture engine), writes an egress receipt before the fetch and refuses to download when the receipt cannot be written (fail-closed; the sink is registered in the wiring test's polarity table), caps the download at 32 MB, streams with the cap enforced, writes the file only after the hash matches, and places it under ~/.impeccable/bin/<version>/ (a trusted IMPECCABLE_HOME is honored; never inside a project). No skill, no hook, no launcher, no npx. --sha256 accepts a sidecar checksum for a version gstack has not pinned; --base allows a mirror (https, or http on loopback for tests). After a successful install the probe runs and its lines follow, so the skill sees READY at once. The probe ends with DESIGN_DETECTOR_INSTALL_OFFER (version, platform, bytes, destination) whenever it found no engine and the user has not answered the question; once design_detector_install_prompted is true it prints neither the offer nor the NOT_CACHED hint, which used to repeat on every run. The hint's npx wording is corrected: `npx impeccable detect --help` caches the engine for npx only, not where the probe looks. gstack-config gains design_detector_install_prompted (true|false, typo rejected, enumerated in list and defaults). Tests: a loopback mirror (async spawn, so the in-process server can answer) covers install, re-install as a verified no-op, checksum mismatch, 404, unpinned version, non-https base, design_detector off, and IMPECCABLE_HOME inside the repo; the offer and the silenced hint; pin completeness per platform. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * feat(design): ask once before downloading impeccable's engine When the probe prints DESIGN_DETECTOR_INSTALL_OFFER the design skills ask the user one AskUserQuestion, in interactive sessions only (spawned or headless runs never install and never ask; Conductor gets the prose brief), before any other step: install the engine now, not now, never ask again (design_detector_install_prompted), or turn the detector off. A yes runs the receipted, checksum-pinned install and the skill continues with a READY probe. The brief says what impeccable is, what the one file is, where it goes, how it is verified and logged, and that no skill or hook comes with it; users who want the /impeccable skill run npx impeccable install themselves. design-review carries the brief inline (it is not carved). design-html keeps its skeleton small: the probe block points at a new read-on-demand section, sections/detector-install-offer.md, registered in its manifest and carve guard; its skeleton ceiling is re-measured (55,262) and its eager ceiling set to the measured 13,767. The review and ship passes state that they never offer an install. NOTICE.md, README, docs/skills.md, the interop design doc, and the CHANGELOG describe the new posture: gstack still never runs impeccable's installer or launcher; the one download is consented, pinned, and receipted. Ship goldens refreshed for the review-pass wording. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
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Review Sections (7 passes, after scope is agreed)
Anti-skip rule: Never condense, abbreviate, or skip any review pass (1-7) regardless of plan type (strategy, spec, code, infra). Every pass in this skill exists for a reason. "This is a strategy doc so design passes don't apply" is always wrong — design gaps are where implementation breaks down. If a pass genuinely has zero findings, say "No issues found" and move on — but you must evaluate it.
Anti-shortcut clause: The plan file is the OUTPUT of the interactive review, not a substitute for it. Writing every finding into one plan write and calling ExitPlanMode without firing AskUserQuestion is the precise failure mode of the May 2026 transcript bug — the model explored, found issues, and dumped them into a deliverable rather than walking the user through them. If you have ANY non-trivial finding in any review section, the path from finding to ExitPlanMode goes THROUGH AskUserQuestion. Zero findings in every section is the only path to ExitPlanMode that bypasses AskUserQuestion. If you find yourself wanting to write a plan with findings before asking, stop and call AskUserQuestion now — that's the bug, recognize it.
Prior Learnings
Search for relevant learnings from previous sessions:
_CROSS_PROJ=$(~/.claude/skills/gstack/bin/gstack-config get cross_project_learnings 2>/dev/null || echo "unset")
echo "CROSS_PROJECT: $_CROSS_PROJ"
if [ "$_CROSS_PROJ" = "true" ]; then
~/.claude/skills/gstack/bin/gstack-learnings-search --limit 10 --cross-project 2>/dev/null || true
else
~/.claude/skills/gstack/bin/gstack-learnings-search --limit 10 2>/dev/null || true
fi
If CROSS_PROJECT is unset (first time): Use AskUserQuestion:
gstack can search learnings from your other projects on this machine to find patterns that might apply here. This stays local (no data leaves your machine). Recommended for solo developers. Skip if you work on multiple client codebases where cross-contamination would be a concern.
Options:
- A) Enable cross-project learnings (recommended)
- B) Keep learnings project-scoped only
If A: run ~/.claude/skills/gstack/bin/gstack-config set cross_project_learnings true
If B: run ~/.claude/skills/gstack/bin/gstack-config set cross_project_learnings false
Then re-run the search with the appropriate flag.
If learnings are found, incorporate them into your analysis. When a review finding matches a past learning, display:
"Prior learning applied: [key] (confidence N/10, from [date])"
This makes the compounding visible. The user should see that gstack is getting smarter on their codebase over time.
Pass 1: Information Architecture
Rate 0-10: Does the plan define what the user sees first, second, third? FIX TO 10: Add information hierarchy to the plan. Include ASCII diagram of screen/page structure and navigation flow. Apply "constraint worship" — if you can only show 3 things, which 3? STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY. If no issues, say so and move on. Do NOT proceed until user responds.
Pass 2: Interaction State Coverage
Rate 0-10: Does the plan specify loading, empty, error, success, partial states? FIX TO 10: Add interaction state table to the plan:
FEATURE | LOADING | EMPTY | ERROR | SUCCESS | PARTIAL
---------------------|---------|-------|-------|---------|--------
[each UI feature] | [spec] | [spec]| [spec]| [spec] | [spec]
For each state: describe what the user SEES, not backend behavior. Empty states are features — specify warmth, primary action, context. STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY.
Pass 3: User Journey & Emotional Arc
Rate 0-10: Does the plan consider the user's emotional experience? FIX TO 10: Add user journey storyboard:
STEP | USER DOES | USER FEELS | PLAN SPECIFIES?
-----|------------------|-----------------|----------------
1 | Lands on page | [what emotion?] | [what supports it?]
...
Apply time-horizon design: 5-sec visceral, 5-min behavioral, 5-year reflective. STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY.
Pass 4: AI Slop Risk
Rate 0-10: Does the plan describe specific, intentional UI — or generic patterns? FIX TO 10: Rewrite vague UI descriptions with specific alternatives.
Design Hard Rules
Classifier: name the mode before you judge a pixel. The mode is what the visitor's win looks like on THIS surface, not what the product is. A dev tool's landing page is Persuade. A fashion house's docs are Read.
- PERSUADE (MARKETING/LANDING PAGE: hero-driven, brand-forward, pricing, campaigns) → they decide and act. Design IS the product. Apply Landing Page Rules.
- OPERATE (APP UI: dashboards, admin, settings, editors, tools) → they finish a task. Scanability and native expectations beat expression; the brand lives in the details. Apply App UI Rules.
- READ (docs, articles, guides, changelogs) → they understand something. Structure for comprehension, then make staying worth it. Apply Read Rules.
- EXPERIENCE (portfolios, galleries, showcases) → they are inside the work. The artifact owns the first viewport; the interface gets out of the way. Apply Experience Rules.
- HYBRID (marketing shell with app-like sections) → classify per section, not per page.
Hard rejection criteria (instant-fail patterns — flag if ANY apply):
- Generic SaaS card grid as first impression
- Beautiful image with weak brand
- Strong headline with no clear action
- Busy imagery behind text
- Sections repeating same mood statement
- Carousel with no narrative purpose
- App UI made of stacked cards instead of layout
Litmus checks (answer YES/NO for each — used for cross-model consensus scoring):
- Brand/product unmistakable in first screen?
- One strong visual anchor present?
- Page understandable by scanning headlines only?
- Each section has one job?
- Are cards actually necessary?
- Does motion improve hierarchy or atmosphere?
- Would design feel premium with all decorative shadows removed?
Landing page rules (apply when classifier = PERSUADE / MARKETING/LANDING):
- First viewport reads as one composition, not a dashboard
- Brand-first hierarchy: brand > headline > body > CTA
- Typography: expressive, purposeful — no default stacks (Inter, Roboto, Arial, system)
- No flat single-color backgrounds by default: texture from the brand or a real asset, never a halo, spotlight, stripe, or grid-paper gradient (the catalog names each)
- Hero: full-bleed, edge-to-edge, no inset/tiled/rounded variants
- Hero budget: brand, one headline, one supporting sentence, one CTA group, one image
- No cards in hero. Cards only when card IS the interaction
- One job per section: one purpose, one headline, one short supporting sentence
- Motion: one authored moment on the first viewport (an entrance or a scroll-linked reveal), ease-out from a visible default; hover states only where they carry information
- Color: define CSS variables, avoid purple-on-white defaults, one accent color default
- Copy: product language not design commentary. "If deleting 30% improves it, keep deleting"
- Beautiful defaults: composition-first, brand as loudest text, two text faces max (plus a mono for data and code), cardless by default, first viewport as one composition, not a document (poster in stance, not in type size: display stays under 6rem)
App UI rules (apply when classifier = OPERATE / APP UI):
- Calm surface hierarchy, strong typography, few colors
- Dense but readable, minimal chrome
- Organize: primary workspace, navigation, secondary context, one accent
- Avoid: dashboard-card mosaics, thick borders, decorative gradients, ornamental icons
- Copy: utility language — orientation, status, action. Not mood/brand/aspiration
- Cards only when card IS the interaction
- Section headings state what area is or what user can do ("Selected KPIs", "Plan status")
Read rules (apply when classifier = READ):
- Measure 65-75ch, one reading column, headings closer to what follows than to what precedes
- Wayfinding is a feature: where am I, what is next, where do I search
- A docs index is Read, not Persuade: no hero, no CTA theater
Experience rules (apply when classifier = EXPERIENCE):
- The work fills the first viewport; chrome earns every pixel
- One authored transition, not a scroll-jacked tour
- Never crop the artifact to fit a template
Universal rules (apply to ALL types):
- Define CSS variables for color system
- No default font stacks as the display voice (Inter, Roboto, Arial, system); body/UI use on an Operate or Read surface follows the role-scoped list (DM Sans, Instrument Sans, IBM Plex Sans pass when the proposal says so)
- One job per section
- "If deleting 30% of the copy improves it, keep deleting"
- Cards earn their existence — no decorative card grids
- NEVER use small, low-contrast type (body text < 16px or contrast ratio < 4.5:1 on body text)
- NEVER put labels inside form fields as the only label (placeholder-as-label pattern — labels must be visible when the field has content)
- ALWAYS preserve visited vs unvisited link distinction (visited links must have a different color)
- NEVER float headings between paragraphs (heading must be visually closer to the section it introduces than to the preceding section)
Reflexes no detector catches (check by hand, every time):
- Browser surfaces carry the design. Selection color, caret, scrollbars, focus rings, underline offset, tabular numerals all ship with browser defaults that belong to no design system. Theme them from the palette. Cheapest tell that a page was designed rather than assembled, and the one models skip most.
- One authored motion moment. Not the same entrance on every section, not a hover effect on everything. Exponential ease-out from an already-visible default. Content never hides behind animation timing.
- Depth has an offset. Shadows are offset plus soft blur. A zero-offset colored halo is decoration, not depth.
- Secondary text on a colored surface is tinted from that hue. Never gray.
- More space above a heading than below it. Read the computed values.
- Light or dark comes from the use scene. Who, where, under what light: one sentence. Never from the category.
Calibration: the three looks. AI-built interfaces land in one of three looks no matter what the product is: (1) cream ground, high-contrast serif display, terracotta or signal-red accent; (2) near-black, one neon accent, glowing edges; (3) broadsheet hairlines, italic display serif, tiny tracked mono labels. Each is fine when the brief asks for it. If the brief left the look open and you landed in one anyway, you stopped looking. The test: could someone guess your look from the category alone? From "the category, but avoiding the obvious"? Either way, start over. "It's about books, so cream and a serif" fails this test. Book cloth and jackets come in every saturated color there is.
AI Slop blacklist (the 11 patterns that scream "AI-generated"):
- Purple/violet/indigo gradient backgrounds or blue-to-purple color schemes
- The 3-column feature grid: icon-in-colored-circle + bold title + 2-line description, repeated 3x symmetrically. THE most recognizable AI layout.
- Icons in colored circles as section decoration (SaaS starter template look)
- Centered everything (
text-align: centeron all headings, descriptions, cards) - Uniform bubbly border-radius on every element (same large radius on everything)
- Decorative blobs, floating circles, wavy SVG dividers (if a section feels empty, it needs better content, not decoration)
- Emoji as design elements (rockets in headings, emoji as bullet points)
- Colored left-border on cards (
border-left: 3px solid <accent>) - Generic hero copy ("Welcome to [X]", "Unlock the power of...", "Your all-in-one solution for...")
- Cookie-cutter section rhythm (hero → 3 features → testimonials → pricing → CTA, every section same height)
- system-ui or
-apple-systemas the PRIMARY display/body font — the "I gave up on typography" signal. Pick a real typeface.
Detector rule ids for the rest of the catalog (a [rule-id] in a finding is one of these): border-accent-on-rounded: Border accent on a rounded card; overused-font: Overused display font; flat-type-hierarchy: Flat type hierarchy; gradient-text: Gradient text; cream-palette: Cream default palette; nested-cards: Nested cards; monotonous-spacing: Monotonous spacing; bounce-easing: Bounce easing; pulsing-dot: Pulsing status dot; blinking-cursor: Blinking cursor effect; shape-assembled-illustration: Shape-assembled illustration; dark-glow: Dark-mode glow; radial-halo: Radial halo; radial-spotlight-glow: Radial spotlight glow; marquee: Logo marquee; icon-tile-stack: Icon tile above every heading; italic-serif-display: Italic serif display; hero-eyebrow-chip: Hero eyebrow chip; kicker-above-heading: Kicker above heading; numbered-section-labels: Numbered section labels; em-dash-overuse: Em-dash overuse; marketing-buzzword: Marketing buzzwords; aphoristic-cadence: Aphoristic cadence; oversized-h1: Oversized h1; extreme-negative-tracking: Extreme negative tracking; gpt-thin-border-wide-shadow: Thin border plus wide shadow; repeating-stripes-gradient: Repeating stripes gradient; codex-grid-background: Grid-paper background; theater-slop-phrase: Theater phrases; image-hover-transform: Image hover zoom.
Judgment tells with no detector rule: gradient cta button, stock-photo hero, cards as the default component, generic testimonial section, left-text right-image hero, generic cta labels, hero metric template, identical card grids, glassmorphism, hand-drawn svg illustration, modal by default, monospace as costume, content stand-ins, mode picked by category, unthemed browser surfaces, missing states.
Source: OpenAI "Designing Delightful Frontends with GPT-5.4" (Mar 2026) + gstack design methodology.
- "Cards with icons" → what differentiates these from every SaaS template?
- "Hero section" → what makes this hero feel like THIS product?
- "Clean, modern UI" → meaningless. Replace with actual design decisions.
- "Dashboard with widgets" → what makes this NOT every other dashboard?
If visual mockups were generated in Step 0.5, evaluate them against the AI slop blacklist above. Read each mockup image using the Read tool. Does the mockup fall into generic patterns (3-column grid, centered hero, stock-photo feel)? If so, flag it and offer to regenerate with more specific direction via
$D iterate --feedback "...". STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY.
Pass 5: Design System Alignment
Rate 0-10: Does the plan align with DESIGN.md?
FIX TO 10: If DESIGN.md exists, annotate with specific tokens/components; when it has YAML front matter (the open DESIGN.md format), cite tokens by path ({colors.primary}, {rounded.md}) so the plan and the file share one vocabulary. If no DESIGN.md, flag the gap and recommend /design-consultation.
Flag any new component — does it fit the existing vocabulary?
STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY.
Pass 6: Responsive & Accessibility
Rate 0-10: Does the plan specify mobile/tablet, keyboard nav, screen readers? FIX TO 10: Add responsive specs per viewport — not "stacked on mobile" but intentional layout changes. Add a11y: keyboard nav patterns, ARIA landmarks, touch target sizes (44px min), color contrast requirements. STOP. AskUserQuestion once per issue. Do NOT batch. Recommend + WHY.
Pass 7: Unresolved Design Decisions
Surface ambiguities that will haunt implementation:
DECISION NEEDED | IF DEFERRED, WHAT HAPPENS
-----------------------------|---------------------------
What does empty state look like? | Engineer ships "No items found."
Mobile nav pattern? | Desktop nav hides behind hamburger
...
If visual mockups were generated in Step 0.5, reference them as evidence when surfacing unresolved decisions. A mockup makes decisions concrete — e.g., "Your approved mockup shows a sidebar nav, but the plan doesn't specify mobile behavior. What happens to this sidebar on 375px?" Each decision = one AskUserQuestion with recommendation + WHY + alternatives. Edit the plan with each decision as it's made.
Post-Pass: Update Mockups (if generated)
If mockups were generated in Step 0.5 and review passes changed significant design decisions (information architecture restructure, new states, layout changes), offer to regenerate (one-shot, not a loop):
AskUserQuestion: "The review passes changed [list major design changes]. Want me to regenerate mockups to reflect the updated plan? This ensures the visual reference matches what we're actually building."
If yes, use $D iterate with feedback summarizing the changes, or $D variants with an updated brief. Save to the same $_DESIGN_DIR directory.
CRITICAL RULE — How to ask questions
Follow the AskUserQuestion format from the Preamble above. Additional rules for plan design reviews:
- One issue = one AskUserQuestion call. Never combine multiple issues into one question.
- Describe the design gap concretely — what's missing, what the user will experience if it's not specified.
- Present 2-3 options. For each: effort to specify now, risk if deferred.
- Map to Design Principles above. One sentence connecting your recommendation to a specific principle.
- Label with issue NUMBER + option LETTER (e.g., "3A", "3B").
- Zero findings: if a section has zero findings, state "No issues, moving on" and proceed. Otherwise, use AskUserQuestion for each gap — a gap with an "obvious fix" is still a gap and still needs user approval before any change lands in the plan.
- NEVER use AskUserQuestion to ask which variant the user prefers. Always create a comparison board first (
$D compare --serve) and open it in the browser. The board has rating controls, comments, remix/regenerate buttons, and structured feedback output. Use AskUserQuestion ONLY to notify the user the board is open and wait for them to finish — not to present variants inline and ask "which do you prefer?" That is a degraded experience.
Required Outputs
"NOT in scope" section
Design decisions considered and explicitly deferred, with one-line rationale each.
"What already exists" section
Existing DESIGN.md, UI patterns, and components that the plan should reuse.
TODOS.md updates
After all review passes are complete, present each potential TODO as its own individual AskUserQuestion. Never batch TODOs — one per question. Never silently skip this step.
For design debt: missing a11y, unresolved responsive behavior, deferred empty states. Each TODO gets:
- What: One-line description of the work.
- Why: The concrete problem it solves or value it unlocks.
- Pros: What you gain by doing this work.
- Cons: Cost, complexity, or risks of doing it.
- Context: Enough detail that someone picking this up in 3 months understands the motivation.
- Depends on / blocked by: Any prerequisites.
Then present options: A) Add to TODOS.md B) Skip — not valuable enough C) Build it now in this PR instead of deferring.
Implementation Tasks
Before closing this review, synthesize the findings above into a flat list of
build-actionable tasks. Each task derives from a specific finding — no padding.
Emit the markdown section AND write a JSONL artifact that /autoplan can
aggregate across phases.
Markdown section (always emit)
## Implementation Tasks
Synthesized from this review's findings. Each task derives from a specific
finding above. Run with Claude Code or Codex; checkbox as you ship.
- [ ] **T1 (P1, human: ~2h / CC: ~15min)** — <component> — <imperative title>
- Surfaced by: <section name> — <specific finding text or line reference>
- Files: <paths to touch>
- Verify: <test command or manual check>
- [ ] **T2 (P2, human: ~30min / CC: ~5min)** — ...
Rules:
- P1 blocks ship; P2 should land same branch; P3 is a follow-up TODO.
- If a finding produced no actionable task, do not invent one.
- If a section had zero findings, emit
_No new tasks from <section>._ - Effort uses the AI-compression table from CLAUDE.md.
JSONL artifact (always write, even if zero tasks)
/autoplan reads this file to aggregate across phases. Build each line with
jq -nc so titles and source findings containing quotes, newlines, or
backslashes serialize cleanly — never use hand-rolled echo / printf.
eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)"
TASKS_DIR="${HOME}/.gstack/projects/${SLUG:-unknown}"
mkdir -p "$TASKS_DIR"
TASKS_FILE="$TASKS_DIR/tasks-design-review-$(date +%Y%m%d-%H%M%S).jsonl"
COMMIT=$(git rev-parse HEAD 2>/dev/null || echo unknown)
BRANCH=$(git branch --show-current 2>/dev/null || echo unknown)
RUN_ID="$(date -u +%Y%m%dT%H%M%SZ)-$$"
# Repeat ONE jq invocation per task identified during this review.
# Substitute the placeholders inline with shell variables you set per task:
# TASK_ID (T1, T2, ...), PRIORITY (P1/P2/P3), COMPONENT, TITLE,
# SOURCE_FINDING, EFFORT_HUMAN, EFFORT_CC, FILES_JSON (a JSON array literal
# like '["browse/src/sanitize.ts","browse/src/server.ts"]').
jq -nc \
--arg phase 'design-review' \
--arg run_id "$RUN_ID" \
--arg branch "$BRANCH" \
--arg commit "$COMMIT" \
--arg id "$TASK_ID" \
--arg priority "$PRIORITY" \
--arg component "$COMPONENT" \
--arg effort_human "$EFFORT_HUMAN" \
--arg effort_cc "$EFFORT_CC" \
--arg title "$TITLE" \
--arg source_finding "$SOURCE_FINDING" \
--argjson files "$FILES_JSON" \
'{phase:$phase, run_id:$run_id, branch:$branch, commit:$commit, id:$id, priority:$priority, component:$component, files:$files, effort_human:$effort_human, effort_cc:$effort_cc, title:$title, source_finding:$source_finding}' \
>> "$TASKS_FILE"
If jq is not installed, fall back to skipping the JSONL write and warn
the user to install jq for autoplan aggregation. Never hand-roll JSONL.
If zero tasks were identified in this review, still touch the JSONL file
(: > "$TASKS_FILE") so the aggregator sees that the phase produced output
this run (an empty file means "ran, no findings" — distinct from "didn't run").
Completion Summary
+====================================================================+
| DESIGN PLAN REVIEW — COMPLETION SUMMARY |
+====================================================================+
| System Audit | [DESIGN.md status, UI scope] |
| Step 0 | [initial rating, focus areas] |
| Pass 1 (Info Arch) | ___/10 → ___/10 after fixes |
| Pass 2 (States) | ___/10 → ___/10 after fixes |
| Pass 3 (Journey) | ___/10 → ___/10 after fixes |
| Pass 4 (AI Slop) | ___/10 → ___/10 after fixes |
| Pass 5 (Design Sys) | ___/10 → ___/10 after fixes |
| Pass 6 (Responsive) | ___/10 → ___/10 after fixes |
| Pass 7 (Decisions) | ___ resolved, ___ deferred |
+--------------------------------------------------------------------+
| NOT in scope | written (___ items) |
| What already exists | written |
| TODOS.md updates | ___ items proposed |
| Approved Mockups | ___ generated, ___ approved |
| Decisions made | ___ added to plan |
| Decisions deferred | ___ (listed below) |
| Overall design score | ___/10 → ___/10 |
+====================================================================+
If all passes 8+: "Plan is design-complete. Run /design-review after implementation for visual QA." If any below 8: note what's unresolved and why (user chose to defer).
Unresolved Decisions
If any AskUserQuestion goes unanswered, note it here. Never silently default to an option.
Approved Mockups
If visual mockups were generated during this review, add to the plan file:
## Approved Mockups
| Screen/Section | Mockup Path | Direction | Notes |
|----------------|-------------|-----------|-------|
| [screen name] | ~/.gstack/projects/$SLUG/designs/[folder]/[filename].png | [brief description] | [constraints from review] |
Include the full path to each approved mockup (the variant the user chose), a one-line description of the direction, and any constraints. The implementer reads this to know exactly which visual to build from. These persist across conversations and workspaces. If no mockups were generated, omit this section.
Review Log
After producing the Completion Summary above, persist the review result.
PLAN MODE EXCEPTION — ALWAYS RUN: This command writes review metadata to
~/.gstack/ (user config directory, not project files). The skill preamble
already writes to ~/.gstack/sessions/ and ~/.gstack/analytics/ — this is
the same pattern. The review dashboard depends on this data. Skipping this
command breaks the review readiness dashboard in /ship.
~/.claude/skills/gstack/bin/gstack-review-log '{"skill":"plan-design-review","timestamp":"TIMESTAMP","status":"STATUS","initial_score":N,"overall_score":N,"unresolved":N,"decisions_made":N,"commit":"COMMIT"}'
Substitute values from the Completion Summary:
- TIMESTAMP: current ISO 8601 datetime
- STATUS: "clean" if overall score 8+ AND 0 unresolved; otherwise "issues_open"
- initial_score: initial overall design score before fixes (0-10)
- overall_score: final overall design score after fixes (0-10)
- unresolved: number of unresolved design decisions
- decisions_made: number of design decisions added to the plan
- COMMIT: output of
git rev-parse --short HEAD
Review Readiness Dashboard
After completing the review, read the review log and config to display the dashboard.
~/.claude/skills/gstack/bin/gstack-review-read
Parse the output. Find the most recent entry for each skill (plan-ceo-review, plan-eng-review, review, plan-design-review, design-review-lite, adversarial-review, codex-review, codex-plan-review). Ignore entries with timestamps older than 7 days. For the Eng Review row, show whichever is more recent between review (diff-scoped pre-landing review) and plan-eng-review (plan-stage architecture review). Append "(DIFF)" or "(PLAN)" to the status to distinguish. For the Adversarial row, show whichever is more recent between adversarial-review (new auto-scaled) and codex-review (legacy). For Design Review, show whichever is more recent between plan-design-review (full visual audit) and design-review-lite (code-level check). Append "(FULL)" or "(LITE)" to the status to distinguish. For the Outside Voice row, show the most recent codex-plan-review entry — this captures outside voices from both /plan-ceo-review and /plan-eng-review.
Source attribution: If the most recent entry for a skill has a `"via"` field, append it to the status label in parentheses. Examples: plan-eng-review with via:"autoplan" shows as "CLEAR (PLAN via /autoplan)". review with via:"ship" shows as "CLEAR (DIFF via /ship)". Entries without a via field show as "CLEAR (PLAN)" or "CLEAR (DIFF)" as before.
Note: autoplan-voices and design-outside-voices entries are audit-trail-only (forensic data for cross-model consensus analysis). They do not appear in the dashboard and are not checked by any consumer.
Display:
+====================================================================+
| REVIEW READINESS DASHBOARD |
+====================================================================+
| Review | Runs | Last Run | Status | Required |
|-----------------|------|---------------------|-----------|----------|
| Eng Review | 1 | 2026-03-16 15:00 | CLEAR | YES |
| CEO Review | 0 | — | — | no |
| Design Review | 0 | — | — | no |
| Adversarial | 0 | — | — | no |
| Outside Voice | 0 | — | — | no |
+--------------------------------------------------------------------+
| VERDICT: CLEARED — Eng Review passed |
+====================================================================+
Review tiers:
- Eng Review (required by default): The only review that gates shipping. Covers architecture, code quality, tests, performance. Can be disabled globally with `gstack-config set skip_eng_review true` (the "don't bother me" setting).
- CEO Review (optional): Use your judgment. Recommend it for big product/business changes, new user-facing features, or scope decisions. Skip for bug fixes, refactors, infra, and cleanup.
- Design Review (optional): Use your judgment. Recommend it for UI/UX changes. Skip for backend-only, infra, or prompt-only changes.
- Adversarial Review (automatic): Always-on for every review. Every diff gets both Claude adversarial subagent and Codex adversarial challenge. Large diffs (200+ lines) additionally get Codex structured review with P1 gate. No configuration needed.
- Outside Voice (optional): Independent plan review from a different AI model when Codex is available (falls back to a same-family Claude subagent otherwise — fresh context, not cross-model). Offered after all review sections complete in /plan-ceo-review and /plan-eng-review. Never gates shipping.
Verdict logic:
- CLEARED: Eng Review has >= 1 entry within 7 days from either `review` or `plan-eng-review` with status "clean" (or `skip_eng_review` is `true`)
- NOT CLEARED: Eng Review missing, stale (>7 days), or has open issues
- CEO, Design, and Codex reviews are shown for context but never block shipping
- If `skip_eng_review` config is `true`, Eng Review shows "SKIPPED (global)" and verdict is CLEARED
Staleness detection: After displaying the dashboard, check if any existing reviews may be stale:
- Content-first rule (diff-scoped rows only: `review`, `adversarial-review`, `codex-review`, ship-stage entries). Parse the `---WTREE---` and `---DIRTY---` sections from the bash output. If an entry has a `wtree` field AND it equals the current `---WTREE---` value, the review is CURRENT — identical content, regardless of commit count, rebase, amend, or whether it was committed yet (wtree equality alone proves identical content; that is the keystone property). Skip the commit-count heuristic for that entry and show no staleness note.
- Plan-tier rows (plan-ceo-review, plan-eng-review, plan-design-review) grade a plan file, not the repo tree — never apply the wtree rule to them; they keep the 7-day freshness logic. If such an entry carries a `plan_sha256` field, you MAY compare it against the current plan file's sha256 and note "plan changed since review" on mismatch.
- Fallback (no `wtree` on the entry, or wtree mismatch): parse the `---HEAD---` section to get the current HEAD commit hash. For each review entry that has a `commit` field: compare it against the current HEAD. If different, count elapsed commits: `git rev-list --count STORED_COMMIT..HEAD`. If that command FAILS (the stored commit was rebased away), grade UNKNOWN and treat as stale — do not error. Display: "Note: {skill} review from {date} may be stale — {N} commits since review"
- For entries without a `commit` field (legacy entries): display "Note: {skill} review from {date} has no commit tracking — consider re-running for accurate staleness detection"
- If all reviews grade CURRENT (wtree match or HEAD match), do not display any staleness notes
Plan File Review Report
After displaying the Review Readiness Dashboard in conversation output, also update the plan file itself so review status is visible to anyone reading the plan.
Detect the plan file
- Check if there is an active plan file in this conversation (the host provides plan file paths in system messages — look for plan file references in the conversation context).
- If not found, skip this section silently — not every review runs in plan mode.
Generate the report
Read the review log output you already have from the Review Readiness Dashboard step above. Parse each JSONL entry. Each skill logs different fields:
- plan-ceo-review: `status`, `unresolved`, `critical_gaps`, `mode`, `scope_proposed`, `scope_accepted`, `scope_deferred`, `commit` → Findings: "{scope_proposed} proposals, {scope_accepted} accepted, {scope_deferred} deferred" → If scope fields are 0 or missing (HOLD/REDUCTION mode): "mode: {mode}, {critical_gaps} critical gaps"
- plan-eng-review: `status`, `unresolved`, `critical_gaps`, `issues_found`, `mode`, `commit` → Findings: "{issues_found} issues, {critical_gaps} critical gaps"
- plan-design-review: `status`, `initial_score`, `overall_score`, `unresolved`, `decisions_made`, `commit` → Findings: "score: {initial_score}/10 → {overall_score}/10, {decisions_made} decisions"
- plan-devex-review: `status`, `initial_score`, `overall_score`, `product_type`, `tthw_current`, `tthw_target`, `mode`, `persona`, `competitive_tier`, `unresolved`, `commit` → Findings: "score: {initial_score}/10 → {overall_score}/10, TTHW: {tthw_current} → {tthw_target}"
- devex-review: `status`, `overall_score`, `product_type`, `tthw_measured`, `dimensions_tested`, `dimensions_inferred`, `boomerang`, `commit` → Findings: "score: {overall_score}/10, TTHW: {tthw_measured}, {dimensions_tested} tested/{dimensions_inferred} inferred"
- codex-review: `status`, `gate`, `findings`, `findings_fixed` → Findings: "{findings} findings, {findings_fixed}/{findings} fixed"
All fields needed for the Findings column are now present in the JSONL entries. For the review you just completed, you may use richer details from your own Completion Summary. For prior reviews, use the JSONL fields directly — they contain all required data.
Produce this markdown table:
```markdown
GSTACK REVIEW REPORT
| Review | Trigger | Why | Runs | Status | Findings |
|---|---|---|---|---|---|
| CEO Review | `/plan-ceo-review` | Scope & strategy | {runs} | {status} | {findings} |
| Codex Review | `/codex review` | Independent 2nd opinion | {runs} | {status} | {findings} |
| Eng Review | `/plan-eng-review` | Architecture & tests (required) | {runs} | {status} | {findings} |
| Design Review | `/plan-design-review` | UI/UX gaps | {runs} | {status} | {findings} |
| DX Review | `/plan-devex-review` | Developer experience gaps | {runs} | {status} | {findings} |
| ``` |
Below the table, add these lines. CODEX and CROSS-MODEL are optional (omit when empty); VERDICT is always present:
- CODEX: (only if codex-review ran) — one-line summary of codex fixes
- CROSS-MODEL: (only if both Claude and Codex reviews exist) — overlap analysis
- VERDICT: list reviews that are CLEAR (e.g., "CEO + ENG CLEARED — ready to implement"). If Eng Review is not CLEAR and not skipped globally, append "eng review required".
Unresolved-decisions status (MANDATORY — never omitted; the report's final non-whitespace line). After VERDICT, end the report (content under the `## GSTACK REVIEW REPORT` heading — a bold label, never a new `## ` heading; exempt from the "omit when empty" rule) with exactly one: the exact unbolded line `NO UNRESOLVED DECISIONS` (a bolded one does NOT count), OR a `UNRESOLVED DECISIONS:` header + one bullet per open item (last bullet = final line; add `+ N unresolved from prior reviews` only when N > 0). This avoids double-counting: list THIS review's open items from context; for prior reviews sum `unresolved` over the latest fresh row per skill (dashboard 7-day window) after you DROP the current skill's row; emit the sentinel only when both are zero.
Write to the plan file
PLAN MODE EXCEPTION — ALWAYS RUN: This writes to the plan file, which is the one file you are allowed to edit in plan mode. The plan file review report is part of the plan's living status.
The report must always be the LAST section of the plan file — never mid-file. Use a single delete-then-append flow:
- Read the plan file (Read tool) to see its full current content. Search the read output for a `## GSTACK REVIEW REPORT` heading anywhere in the file.
- If found, use the Edit tool to DELETE the entire existing section. Match from `## GSTACK REVIEW REPORT` through either the next `## ` heading or end of file, whichever comes first. Replace with the empty string. This applies regardless of where the section currently lives — mid-file deletion is intentional, not a special case. If the Edit fails (e.g., concurrent edit changed the content), re-read the plan file and retry once.
- After the delete (or skipped, if no section existed), append the new `## GSTACK REVIEW REPORT` section at the END of the file. Use the Edit tool to match the file's current last paragraph and add the section after it, or use Write to re-emit the whole file with the section at the end.
- Verify with the Read tool that `## GSTACK REVIEW REPORT` is the last `## ` heading in the file before continuing. If it isn't, repeat steps 2-3 once.
Do NOT replace the section in place. The "replace mid-file" path is what allowed prior versions to leave the report mid-file when an older report already lived there — the user then sees a plan whose review report is not at the bottom and (correctly) rejects it.
Capture Learnings
If you discovered a non-obvious pattern, pitfall, or architectural insight during this session, log it for future sessions:
~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"plan-design-review","type":"TYPE","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"SOURCE","files":["path/to/relevant/file"]}'
Types: pattern (reusable approach), pitfall (what NOT to do), preference
(user stated), architecture (structural decision), tool (library/framework insight),
operational (project environment/CLI/workflow knowledge).
Sources: observed (you found this in the code), user-stated (user told you),
inferred (AI deduction), cross-model (both Claude and Codex agree).
Confidence: 1-10. Be honest. An observed pattern you verified in the code is 8-9. An inference you're not sure about is 4-5. A user preference they explicitly stated is 10.
files: Include the specific file paths this learning references. This enables staleness detection: if those files are later deleted, the learning can be flagged.
Only log genuine discoveries. Don't log obvious things. Don't log things the user already knows. A good test: would this insight save time in a future session? If yes, log it.
Brain Calibration Write-Back (Phase 2 / gated)
When the skill makes a typed prediction worth tracking (scope decision,
TTHW target, architectural bet, wedge commitment), it MAY write a
kind=bet take to the brain so a calibration profile builds over time.
Gated on two things:
- Brain trust policy for the active endpoint is
personal(check via~/.claude/skills/gstack/bin/gstack-config get brain_trust_policy@<endpoint-hash>). Shared brains skip write-back to avoid polluting team calibration. - Feature flag
BRAIN_CALIBRATION_WRITEBACKis set (today: false; flips to true when upstream gbrain v0.42+ shipstakes_addMCP op).
When both gates pass, the write-back path uses mcp__gbrain__takes_add
to record a take with weight 0.5 (per SKILL_CALIBRATION_WEIGHTS).
If the MCP op is unavailable, fall back to mcp__gbrain__put_page with
a gstack:takes fence block (documented but uglier path).
Mandatory take frontmatter shape:
kind: bet
holder: <user identity from whoami>
claim: <one-line prediction the skill is making>
weight: 0.5
since_date: <today's date>
expected_resolution: <date in 1-3 months depending on skill>
source_skill: plan-design-review
After write, invalidate the affected digests so the next preflight reflects the new state:
eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)" 2>/dev/null || true
~/.claude/skills/gstack/bin/gstack-brain-cache invalidate brand --project "$SLUG" 2>/dev/null || true
Brain Cache Background Refresh
After the skill's work completes (and telemetry has logged), kick a background refresh of any cache digest that's getting close to its TTL. This is non-blocking — the user doesn't wait. Next invocation benefits from the warm cache.
eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)" 2>/dev/null || true
(~/.claude/skills/gstack/bin/gstack-brain-cache refresh --project "$SLUG" 2>/dev/null &) || true
Next Steps — Review Chaining
After displaying the Review Readiness Dashboard, recommend the next review(s) based on what this design review discovered. Read the dashboard output to see which reviews have already been run and whether they are stale.
Recommend /plan-eng-review if eng review is not skipped globally — check the dashboard output for skip_eng_review. If it is true, eng review is opted out — do not recommend it. Otherwise, eng review is the required shipping gate. If this design review added significant interaction specifications, new user flows, or changed the information architecture, emphasize that eng review needs to validate the architectural implications. If an eng review already exists but the commit hash shows it predates this design review, note that it may be stale and should be re-run.
Consider recommending /plan-ceo-review — but only if this design review revealed fundamental product direction gaps. Specifically: if the overall design score started below 4/10, if the information architecture had major structural problems, or if the review surfaced questions about whether the right problem is being solved. AND no CEO review exists in the dashboard. This is a selective recommendation — most design reviews should NOT trigger a CEO review.
If both are needed, recommend eng review first (required gate).
Recommend design exploration skills when appropriate — /design-shotgun and /design-html produce design artifacts (mockups, HTML previews), not application code. They belong in plan mode alongside reviews. If this design review found visual issues that would benefit from exploring new directions, recommend /design-shotgun. If approved mockups exist and need to be turned into working HTML, recommend /design-html.
Use AskUserQuestion to present the next step. Include only applicable options:
- A) Run /plan-eng-review next (required gate)
- B) Run /plan-ceo-review (only if fundamental product gaps found)
- C) Run /design-shotgun — explore visual design variants for issues found
- D) Run /design-html — generate Pretext-native HTML from approved mockups
- E) Skip — I'll handle next steps manually
Formatting Rules
- NUMBER issues (1, 2, 3...) and LETTERS for options (A, B, C...).
- Label with NUMBER + LETTER (e.g., "3A", "3B").
- One sentence max per option.
- After each pass, pause and wait for feedback.
- Rate before and after each pass for scannability.