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| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Garry Tan
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e3d7f49c74 |
feat(v1.10.1.0): overlay efficacy harness + Opus 4.7 fanout nudge removal (#1166)
* refactor: export readOverlay from model-overlay resolver Needed by the overlay-efficacy eval harness to resolve INHERIT directives without going through generateModelOverlay's full TemplateContext. * chore: add @anthropic-ai/claude-agent-sdk@0.2.117 dep Pinned exact for SDK event-shape stability. Used by the overlay-efficacy harness to drive the model through a closer-to-real Claude Code harness than `claude -p`. * feat(preflight): sanity check for agent-sdk + overlay resolver Verifies: SDK loads, claude-opus-4-7 is a live API model, SDKMessage event shape matches assumptions, readOverlay resolves INHERIT directives and includes expected content. Run with `bun run scripts/preflight-agent-sdk.ts`. PREFLIGHT OK on first run, $0.013 API spend. * feat(eval): parametric overlay-efficacy harness (runner + fixtures) `test/helpers/agent-sdk-runner.ts` wraps @anthropic-ai/claude-agent-sdk with explicit `AgentSdkResult` types, process-level API concurrency semaphore, and 3-shape 429 retry (thrown error, result-message error, mid-stream SDKRateLimitEvent). Pins the local claude binary via `pathToClaudeCodeExecutable`. `test/fixtures/overlay-nudges.ts` holds the typed registry. Two fixtures for the first measurement: `opus-4-7-fanout-toy` (3-file read) and `opus-4-7-fanout-realistic` (mixed-tool audit). Strict validator rejects duplicate ids, non-integer trials, unsafe overlay paths, non-safe id chars, and missing overlay files at module load. Adding a future overlay nudge eval = one fixture entry. * test(eval): unit tests for agent-sdk-runner (36 tests, free tier) Stub `queryProvider` feeds hand-crafted SDKMessage streams. Covers: happy-path shape, all 3 rate-limit shapes + retry, workspace reset on retry, persistent 429 -> `RateLimitExhaustedError`, non-429 propagation, process-level concurrency cap, options propagation, artifact path uniqueness, cost/turn mapping, and every validator rejection case. * test(eval): paid periodic overlay-efficacy harness `test/skill-e2e-overlay-harness.test.ts` iterates OVERLAY_FIXTURES, runs two arms per fixture (overlay-ON, overlay-OFF) at N=10 trials with bounded concurrency. Arms use SDK preset `claude_code` so both include the real Claude Code system prompt; overlay-ON appends the resolved overlay text. Saves per-trial raw event streams to `~/.gstack/projects/<slug>/transcripts/` for forensic recovery. Gated on `EVALS=1 && EVALS_TIER=periodic`. ~$3/run (40 trials). * test: register overlay harness in touchfiles (both maps) Entries for `overlay-harness-opus-4-7-fanout-toy` and `opus-4-7-fanout-realistic` in E2E_TOUCHFILES (deps: model-overlays/, fixtures file, runner, resolver) and E2E_TIERS (`periodic`). Passes `test/touchfiles.test.ts` completeness check. * fix(opus-4.7): remove "Fan out explicitly" overlay nudge Measured counterproductive under the new SDK harness. Baseline Opus 4.7 emits first-turn parallel tool_use blocks 70% of the time on a 3-file read prompt. With the custom nudge: 10%. With Anthropic's own canonical `<use_parallel_tool_calls>` block from their parallel-tool-use docs: 0%. Both overlays suppress fanout; neither improves it. On realistic multi-tool prompts (audit a project: read files + glob + summarize), Opus 4.7 never fans out in first turn regardless of overlay. Zero of 20 trials. Not a prompt problem. Keeping the other three nudges (effort-match, batch questions, literal interpretation) pending their own measurement. Harness is ready for follow-up fixtures — add one entry to `test/fixtures/overlay-nudges.ts` to measure any overlay bullet. Cost of investigation: ~$7 total across 3 eval runs. * chore: bump version and changelog (v1.6.5.0) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * feat(eval): extend OverlayFixture with allowedTools, maxTurns, direction Per-fixture tool allowlist unblocks measuring nudges that need Edit/Write (e.g. literal-interpretation 'fix the failing tests' needs write access). Per-fixture maxTurns lets harder prompts run longer without changing the default. `direction` is cosmetic metadata for test output labeling. Also adds reusable predicates and metrics: - lowerIsBetter20Pct / higherIsBetter20Pct — 20% lift threshold vs baseline - bashToolCallCount — count of Bash tool_use across the session - turnsToCompletion — SDK-reported num_turns at result - uniqueFilesEdited — Edit/Write/MultiEdit file_path set size test/skill-e2e-overlay-harness.test.ts now threads fixture.allowedTools and fixture.maxTurns through runArm. * test(eval): 3 more overlay fixtures to measure remaining Claude nudges Measures three overlay bullets that haven't been tested yet: - claude-dedicated-tools-vs-bash — claude.md says 'prefer Read/Edit/Write/ Glob/Grep over cat/sed/find/grep'. Fixture prompts 'list every TypeScript file under src/ and tell me what each exports' and counts Bash tool_use across the session. Overlay-ON should drop it by >=20%. - opus-4-7-effort-match-trivial — opus-4-7.md says 'simple file reads don't need deep reasoning.' Fixture uses a trivial one-file prompt (config.json lookup) and measures turns_used. Overlay-ON should be <=80% of baseline turns. - opus-4-7-literal-interpretation — opus-4-7.md says 'fix ALL failing tests, not just the obvious one.' Fixture seeds three failing test files with deliberately distinct failure modes and counts unique files edited. Overlay-ON should touch >=20% more files. Adding a fourth fixture for any remaining overlay nudge is a single entry. The harness is now proven on: fanout (deleted after measurement), dedicated tools, effort-match, and literal-interpretation. * fix(eval): handle SDK max-turns throw gracefully Some @anthropic-ai/claude-agent-sdk versions throw from the query generator when maxTurns is reached, instead of emitting a result message with subtype='error_max_turns'. The runner treated that as a non-retryable error and killed the whole periodic run on the first fixture that exceeded its turn cap. Added isMaxTurnsError() detector and a catch branch that synthesizes an AgentSdkResult from events captured before the throw, with exitReason='error_max_turns' and costUsd=0 (unknown from the thrown path). The metric function still runs against whatever assistant turns were collected, so the trial produces a usable number. Hoisted events/assistantTurns/toolCalls/assistantTextParts and the timing counters out of the inner try so the catch branch can read them. No behavior change on the success path or on rate-limit retry paths. * test(eval): bump maxTurns to 15 for claude-dedicated-tools-vs-bash The prompt 'list every TypeScript file under src/ and tell me what each exports' needs 1 turn for Glob + ~5 for Reads + 1 for summary. Default maxTurns=5 was not enough; prior run threw from the SDK on this fixture and tanked the whole periodic eval. Bumping to 15 gives headroom. The runner now also handles max-turns gracefully even if a future fixture underestimates, so this is belt and suspenders. * test(eval): Sonnet 4.6 variants of the 5 Opus-4.7 fixtures Same overlays, same prompts, same metrics, `model: 'claude-sonnet-4-6'`. Tests whether the overlays behave differently on a weaker Claude model where baseline behavior is shakier. Sonnet trials cost ~3-4x less than Opus so these 5 add ~$4.50 to a full run. Measurement result from the first paired run (100 trials total, ~$14.55): - **Sonnet + effort-match shows real overlay benefit.** With the overlay on, Sonnet takes 2.5 turns on a trivial `What's the version in config.json?` prompt. Without, it takes exactly 3.0 turns in all 10 trials. ~17% reduction, below the 20% pass threshold but the signal is clean: overlay-ON distribution [2,2,2,2,2,3,3,3,3,3] vs overlay-OFF [3,3,3,3,3,3,3,3,3,3]. - All other Sonnet dimensions flat (fanout, dedicated-tools, literal interpretation). Same as Opus on those axes. - Opus effort-match remains flat (2.60 vs 2.50, +4% slower with overlay). Implication: model-stratified. The overlay stack helps Sonnet on some axes where it does nothing on Opus. Wholesale removal would hurt Sonnet. Per-nudge per-model measurement is the right move going forward. * chore: bump version to 1.10.1.0 Updates VERSION, package.json, CHANGELOG header, and TODOS completion marker from 1.6.5.0 to 1.10.1.0. --------- Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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Garry Tan
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a81be53621 |
v1.10.0.0: fix AskUserQuestion cadence + Pros/Cons format upgrade (#1178)
* fix(preamble): reorder AskUserQuestion Format above model overlay + rewrite Opus 4.7 pacing directive
Root cause of plan-review regression (v1.6.4.0): model overlays rendered
ABOVE the pacing rule in every SKILL.md, so Opus 4.7 read "Batch your
questions" first and absorbed it as the ambient default. The overlay's
claimed subordination ("skill wins on pacing, always") didn't stick —
literal-interpretation mode reads physical order, not claimed hierarchy.
Part 1 of 4 (plan: ~/.claude/plans/system-instruction-you-are-working-polymorphic-twilight.md):
scripts/resolvers/preamble.ts
- Move generateAskUserFormat above generateModelOverlay in section array
- Comment explains why — prevents future refactors from silently reverting
model-overlays/opus-4-7.md
- Replace "Batch your questions" block with "Pace questions to the skill"
- New wording makes one-question-per-turn the default when the skill
contains STOP directives; batching becomes the explicit exception
Regenerated 30 SKILL.md files via bun run gen:skill-docs.
Verified:
- With --model opus-4-7: Format renders at line 359, Model-Specific
Patch at 373, "Pace questions" at 419 (Format comes first, overlay
second, pacing directive intact).
- bun test passes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix(plan-reviews): tighten STOP/escape-hatch directives across 4 templates
Part 2 of 4 (plan: ~/.claude/plans/system-instruction-you-are-working-polymorphic-twilight.md).
Codex caught that v1.6.3.0's reasoning collapsed on Opus 4.7: the old
escape-hatch wording ("If no issues or fix is obvious, state what
you'll do and move on — don't waste a question") let the literal
interpreter classify every finding as having an "obvious fix" and skip
AskUserQuestion entirely. Reviews became reports.
Per-template hardening (16 sites total, verified by rg):
plan-ceo-review/SKILL.md.tmpl (13 sites):
- 12 inline STOP directives: replace the full escape-hatch clause with
"zero findings → say so and proceed; findings → MUST call AskUserQuestion
as a tool_use, including for obvious fixes."
- 1 Escape hatch bullet in CRITICAL RULE section: tightened.
plan-eng-review, plan-design-review, plan-devex-review (1 site each):
- Each template's Escape hatch bullet tightened to match the new CEO wording,
adapted for each review's domain (issue/gap, decision/design/DX alternatives).
After regeneration: rg "don't waste a question" returns 0 across all
*SKILL.md.tmpl and *SKILL.md files. "zero findings, state" wording
present 16 times (matches prior count of escape-hatch sites).
bun test passes.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat(preamble): upgrade AskUserQuestion format to Pros/Cons decision brief
Part 4 of 4 (plan: ~/.claude/plans/system-instruction-you-are-working-polymorphic-twilight.md).
Every AskUserQuestion now renders as a decision brief, not a bullet list:
D-numbered header, ELI10, Stakes-if-we-pick-wrong, Recommendation, Pros/Cons
with ✅/❌ markers per option, closing Net: tradeoff synthesis.
scripts/resolvers/preamble/generate-ask-user-format.ts
- Full rewrite. Preserves prior rules (Re-ground, ELI10, Recommend,
Completeness, Options) and adds:
- D-numbering per skill invocation (model-level, not runtime state)
- Stakes line (pain avoided / capability unlocked / consequence named)
- Pros/Cons block with min 2 ✅ + 1 ❌ per option, min 40 chars/bullet
- Hard-stop escape: "✅ No cons — this is a hard-stop choice" for
genuine one-sided choices (destructive-action confirmations)
- Neutral-posture handling (CT1-compliant): (recommended) label
STAYS on default option to preserve AUTO_DECIDE contract; neutrality
expressed as prose in Recommendation line only
- Net line closes the decision with a one-sentence tradeoff frame
- Rule 11: tool_use mandate (prose "Question:" blocks don't count)
- Self-check list before emitting
test/skill-validation.test.ts
- Update format assertions to check for new Pros/Cons tokens
(Pros / cons:, Recommendation: <choice>, Net:, ELI10, Stakes if we
pick wrong:, ✅, ❌) across all tier-2+ skills
- Old "RECOMMENDATION: Choose" expectation removed (the new format uses
mixed-case "Recommendation:" with no literal "Choose")
test/skill-e2e-plan-format.test.ts
- Add v1.7.0.0 format token regexes (PROS_CONS_HEADER_RE, PRO_BULLET_RE,
CON_BULLET_RE, NET_LINE_RE, D_NUMBER_RE, STAKES_RE)
- Existing RECOMMENDATION_RE loosened to accept mixed-case "Recommendation:"
(canonical v1.7.0.0 form) alongside all-caps (legacy). Tests are
additive — the strict new-format gate is the upcoming cadence eval.
Regenerated 30 SKILL.md files via bun run gen:skill-docs.
Verified:
- bun test: 319 pass (1 pre-existing security-bench fixture oversize
failure on main, unrelated — confirmed via git stash test on main HEAD)
- New format tokens render in all tier-2+ skills (plan-ceo-review,
plan-eng-review, ship, office-hours verified)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test: gate-tier units + periodic Pros/Cons evals for AskUserQuestion format
Part 3 of 4 (plan: ~/.claude/plans/system-instruction-you-are-working-polymorphic-twilight.md).
Gate-tier (E1, free, runs on every `bun test`):
test/preamble-compose.test.ts — pins the composition order
Asserts AskUserQuestion Format section renders BEFORE Model-Specific
Behavioral Patch in tier-≥2 preamble output. Covers claude default,
opus-4-7 overlay, tier 2/3, and codex host. Catches any future edit
to scripts/resolvers/preamble.ts that silently reverts the order.
test/resolver-ask-user-format.test.ts — pins the Pros/Cons contract
14 assertions against generateAskUserFormat output: D<N>, ELI10,
Stakes if we pick wrong:, Recommendation: <choice>, Pros / cons:,
✅/❌ markers, min 2 pros + 1 con rules, hard-stop escape exact
phrase, neutral-posture CT1 rule ((recommended) label preserved for
AUTO_DECIDE), Completeness coverage-vs-kind, tool_use mandate
(rule 11), self-check list, D-numbering model-level caveat.
test/model-overlay-opus-4-7.test.ts — pins the pacing directive
Asserts raw overlay file + resolved overlay output contain "Pace
questions to the skill" and NOT "Batch your questions". Verifies
INHERIT:claude chain still works (Todo-list, subordination wrapper),
Fan out / Effort-match / Literal interpretation nudges preserved.
Also asserts claude base overlay does NOT carry the Opus-specific
pacing directive (no cross-contamination).
Periodic-tier (E2, Opus-dependent, ~$1-2/run):
test/skill-e2e-plan-prosons.test.ts — 4 cases extending v1.6.3.0 harness
1. Format positive — every token present when plan has real tradeoff
2. Hard-stop NEGATIVE — plan with genuine tradeoff must NOT dodge to
"No cons — hard-stop choice" escape
3. Neutral-posture NEGATIVE — plan where one option dominates must emit
(recommended) label + "because <reason>", must NOT dodge to
"taste call" / "no preference"
4. Hard-stop POSITIVE — destructive-action plan may legitimately use
the hard-stop escape
test/helpers/touchfiles.ts — entries for all new eval cases
Dependencies: overlay, preamble.ts, generate-ask-user-format.ts, and
the 4 plan-review templates. Diff-based selection triggers the evals
whenever those files change. Also added entries for 7 expanded-coverage
cases (ship, office-hours, investigate, qa, review, design-review,
document-release) — test cases will land in follow-up PRs per skill.
Follow-ups noted in test file header:
- True multi-turn cadence eval (3 findings → 3 distinct asks) — current
harness captures one $OUT_FILE per session; multi-turn capture needs
new harness support.
- Expanded-coverage test cases for the 7 non-plan-review skills.
Verified:
- bun test: 349 pass (30 new + 319 baseline), 1 pre-existing security-bench
oversize failure on main (unrelated, unchanged).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test: regenerate golden fixtures + update ELI10 phrase check for v1.7.0.0
Pros/Cons format rewrite (
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Garry Tan
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656df0e37e |
feat(v1.5.2.0): Opus 4.7 migration — model overlay, voice, routing (#1117)
* feat(v1.5.2.0): Opus 4.7 migration — model overlay, voice, routing
Adapts GStack skill text for Claude Opus 4.7's behavioral changes per
Anthropic's migration guide and community findings.
Key changes:
model-overlays/claude.md:
- Fan out explicitly (4.7 spawns fewer subagents by default)
- Effort-match the step (avoid overthinking simple tasks at max)
- Batch questions in one AskUserQuestion turn
- Literal interpretation awareness (deliver full scope)
hosts/claude.ts:
- coAuthorTrailer updated to Claude Opus 4.7
SKILL.md.tmpl:
- Expanded routing triggers with colloquial variants ("wtf",
"this doesn't work", "send it", "where was I") — 4.7 won't
generalize from sparse trigger patterns like 4.6 did
- Added missing routes: /context-save, /context-restore, /cso, /make-pdf
- Changed routing fallback from strict "do NOT answer directly" to
"when in doubt, invoke the skill" — false positives are cheaper
than false negatives on 4.7's literal interpreter
generate-voice-directive.ts:
- Added concrete good/bad voice example — 4.7 needs shown examples,
not just described tone. "auth.ts:47 returns undefined..." vs
"I've identified a potential issue..."
Regenerated all 38 SKILL.md files. All tests pass.
* refactor(opus-4.7): split overlay, align routing, fix trailer fallback
Follow-up to wintermute's initial Opus 4.7 migration commit (addresses
ship-quality review findings before v1.6.1.0 release).
Overlay split (model-overlays/):
- Move 4 Opus-4.7-specific nudges (Fan out, Effort-match, Batch your
questions, Literal interpretation) from claude.md into new
opus-4-7.md with {{INHERIT:claude}}
- claude.md now holds only model-agnostic nudges (Todo discipline,
Think before heavy, Dedicated tools over Bash)
- Prevents Opus-4.7-specific guidance leaking onto Sonnet/Haiku
- Uses existing {{INHERIT:claude}} mechanism at
scripts/resolvers/model-overlay.ts:28-43
scripts/models.ts:
- Add opus-4-7 to ALL_MODEL_NAMES
- resolveModel: claude-opus-4-7-* variants route to opus-4-7,
all other claude-* variants continue to route to claude
scripts/resolvers/utility.ts:
- Update coAuthor trailer fallback: Opus 4.6 -> Opus 4.7
(fallback was missed in the initial migration commit)
scripts/resolvers/preamble/generate-routing-injection.ts:
- Align policy with new SKILL.md.tmpl: soft "when in doubt, invoke"
instead of hard "ALWAYS invoke... Do NOT answer directly"
- Replace stale /checkpoint reference with /context-save +
/context-restore (skills were renamed in v1.0.1.0)
- Expand route coverage to match full skill inventory:
/plan-devex-review, /qa-only, /devex-review, /land-and-deploy,
/setup-deploy, /canary, /open-gstack-browser,
/setup-browser-cookies, /benchmark, /learn, /plan-tune, /health
scripts/resolvers/preamble/generate-voice-directive.ts:
- Voice example closing: "Want me to ship it?" -> "Want me to fix it?"
- Preserves directness while routing through review gates
SKILL.md.tmpl:
- Add routing triggers for skills that were missing from the list:
/plan-devex-review, /qa-only, /devex-review, /land-and-deploy,
/setup-deploy, /canary, /open-gstack-browser,
/setup-browser-cookies, /benchmark, /learn, /plan-tune, /health
- Within Opus 4.7 overlay, added scope boundary to
"Literal interpretation" nudge ("fix tests that this branch
introduced or is responsible for")
- Added pacing exception to "Batch your questions" nudge so skills
that require one-question-at-a-time pacing still win
Follow-up commit will regenerate SKILL.md files + update goldens.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* chore(opus-4.7): regenerate SKILL.md files + update golden fixtures
Mechanical consequence of the preceding source changes (overlay split,
routing alignment, voice example, routing expansion). No behavior change
beyond what that commit introduced.
- 36 SKILL.md files regenerated via bun run gen:skill-docs
- 3 golden fixtures updated (claude, codex, factory ship skill)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(routing): assert slash-prefixed skills + new policy + current names
Align gen-skill-docs.test.ts routing assertions with the remediated
routing-injection output:
- Expect '/office-hours' slash-prefixed form (matches SKILL.md.tmpl style)
- Add test asserting /context-save + /context-restore references
(guards against stale '/checkpoint' name regression)
- Add test asserting "When in doubt, invoke the skill" soft policy
(guards against "Do NOT answer directly" hard policy regression)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(binary-guard): replace xargs-per-file loops with fs.statSync + mode filter
The "no compiled binaries in git" describe block had two flaky tests:
- "git tracks no files larger than 2MB" timed out at 5s regularly because
it spawned one `sh -c` per tracked file via `xargs -I{}` (~571 shells
on every run, ~11s locally).
- "git tracks no Mach-O or ELF binaries" ran `file --mime-type` over every
tracked file (~3-10s, flaky near the timeout).
Both were pre-existing — not caused by any recent change — but showed up
as red in every local `bun test` run and masked legit failures in the
same suite.
Rewrites:
- 2MB test: `fs.statSync(f).size` in a filter. Millisecond-fast.
- Mach-O test: pre-filter to mode 100755 files via `git ls-files -s`,
then batch-invoke `file --mime-type` once across all executables.
With zero executables tracked, the `file` invocation is skipped.
Test suite: 320 pass, 0 fail, 907ms (was ~12.7s with 2 fails).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(team-mode): give setup -q / setup --local tests a 3-minute budget
./setup runs a full install, Bun binary build, and skill regeneration.
On a cold cache it takes 60-90s, comfortably above bun test's 5s default.
Both "setup -q produces no stdout" and "setup --local prints deprecation
warning" have been flaky-to-failing for a while with [5001.78ms] timeouts.
The test logic was fine, the budget wasn't. Bumped both to 180s via the
third-arg timeout.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(opus-4.7): E2E eval for fanout rate + routing precision
Closes the measurement gap flagged by the ship-quality review: "zero
tests exercise Opus 4.7 behavior; every skill-e2e hardcodes 4.6."
Two cases, both pinned to claude-opus-4-7:
1. Fanout rate (A/B)
- Arm A: regen SKILL.md with --model opus-4-7 (overlay ON, includes
"Fan out explicitly" nudge).
- Arm B: regen SKILL.md with --model claude (overlay OFF, only
model-agnostic nudges).
- Prompt: "Read alpha.txt, beta.txt, gamma.txt. These are independent."
- Measure: parallel tool calls in first assistant turn.
- Assert: arm A >= arm B.
2. Routing precision (6-case mini-benchmark)
- 3 positive prompts that should route (wtf bug, send it, does it work)
- 3 negative prompts that match keywords but should NOT route
(syntax question, algorithm question, slack message)
- Assert: TP rate >= 66%, FP rate <= 33%.
Cost estimate: ~$3-5 per full run. Classified as periodic tier per
CLAUDE.md convention (Opus model, non-deterministic). Runs only with
EVALS=1 env var, touchfile-gated so unrelated diffs don't trigger it.
Test plan artifact at
~/.gstack/projects/garrytan-gstack/garrytan-feat-opus-4.7-migration-eng-review-test-plan-20260421-230611.md
tracks the full specification.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* refactor(opus-4.7): rewrite fanout nudge to show parallel tool_use pattern
The original fanout nudge told 4.7 to "spawn subagents in the same turn"
and "run independent checks concurrently" in prose. An E2E eval on
claude-opus-4-7 reading 3 independent files showed zero effect: both
overlay-ON and overlay-OFF arms emitted serial Reads across 3-4 turns.
Rewrite follows the same "show not tell" principle the PR introduced for
voice examples. The nudge now includes a concrete wrong/right contrast
showing the exact tool_use structure:
Wrong (3 turns):
Turn 1: Read(foo.ts), then wait
Turn 2: Read(bar.ts), then wait
Turn 3: Read(baz.ts)
Right (1 turn, 3 parallel tool_use blocks in one assistant message):
Turn 1: [Read(foo.ts), Read(bar.ts), Read(baz.ts)]
Applies to Read, Bash, Grep, Glob, WebFetch, Agent, and any tool where
sub-calls don't depend on each other's output.
Effect on test/skill-e2e-opus-47.test.ts fanout eval: unchanged (both
arms still 0 parallel in first turn via `claude -p`). May land better in
Claude Code's interactive harness, where the system prompt + tool
handlers differ. Tracked as P0 TODO for follow-up verification in the
correct harness.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(opus-4.7): tighten ambiguous /qa routing prompt
"does this feature work on mobile? can you check the deploy?" was too
vague — a reasonable agent asks "which feature?" via AskUserQuestion
instead of routing to /qa. That's not a routing miss, it's an under-
specified prompt.
Replaced with "I just pushed the login flow changes. Test the deployed
site and find any bugs." — concrete subject + clear QA verb.
Result: pos-does-it-work went from MISS to OK, routing TP rate 2/3 -> 3/3.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(opus-4.7): rewrite scratch-root helper + add afterAll cleanup
First run of the Opus 4.7 eval exposed two test-setup gaps that made
results misleading:
- Only the root gstack SKILL.md was installed. Claude Code does
auto-discovery per-directory under .claude/skills/{name}/SKILL.md, so
without individual skill dirs the Skill tool had nothing to route to.
Positive routing cases all failed.
- `claude -p` does not load SKILL.md content as system context the way
the Claude Code harness does. The overlay nudges in SKILL.md were
invisible to the model, so the fanout A/B could not actually differ.
New `mkEvalRoot(suffix, includeOverlay)` helper, modelled on the pattern
in skill-routing-e2e.test.ts:
- Installs per-skill SKILL.md under .claude/skills/ for ~14 key skills
so the Skill tool has discoverable targets.
- Writes an explicit routing block into project CLAUDE.md.
- When includeOverlay is true, inlines the content of
model-overlays/opus-4-7.md into CLAUDE.md too. This is what makes the
fanout A/B observable in `claude -p`: arm ON gets the overlay in
context, arm OFF does not.
Plus an afterAll that re-runs gen-skill-docs at the default model so
the working tree is not left with opus-4-7-generated SKILL.md files
after the eval finishes (would break golden-file tests in the next
`bun test` run otherwise).
With this setup in place: routing went from 3/3 FAIL to 3/3 PASS
(correct skill or clarification in every positive case, zero false
positives on negatives). Fanout A/B is now a fair comparison; still
shows 0 parallel in both arms under `claude -p` (tracked as a P0 TODO
for re-measurement inside Claude Code's harness, where fanout may land
differently).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* docs(todos): verify Opus 4.7 fanout nudge in Claude Code harness (P0)
v1.6.1.0 shipped a rewritten "Fan out explicitly" nudge with a concrete
tool_use example. Under `claude -p` on claude-opus-4-7, the A/B eval
showed zero parallel tool calls in the first turn for both arms
(overlay ON and OFF). Routing verified 3/3 in the same harness, so the
gap is specific to fanout and likely to `claude -p`'s system prompt +
tool wiring.
This TODO closes the measurement loop the ship-quality review flagged:
re-run the fanout A/B inside Claude Code's real harness (or a faithful
replica) before landing another Opus migration claim.
P0 because it is a ship-quality commitment from the v1.6.1.0 release
notes, not a nice-to-have.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* chore(release): v1.6.1.0 — Opus 4.7 migration, reviewed
Bump VERSION + package.json from 1.6.0.0 to 1.6.1.0. New CHANGELOG
entry describing the ship-quality remediation of PR #1117:
- Overlay split (model-agnostic claude.md + opus-4-7.md with INHERIT)
- Routing-injection aligned with SKILL.md.tmpl ("when in doubt" policy,
current skill names, full skill inventory)
- utility.ts trailer fallback updated
- Voice example closes through review gate instead of ship-bypass
- Literal-interpretation nudge bounded to branch scope
- Batch-questions nudge has explicit pacing exception
- First Opus 4.7 eval: routing verified 3/3, fanout A/B unverified
under `claude -p` (tracked as P0 TODO for next rev)
- Pre-existing test failures fixed: fs.statSync binary guard, 180s
setup timeout, golden-file updates
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* test(opus-4.7): key touchfile entries by testName, not describe text
TOUCHFILES completeness scan in test/touchfiles.test.ts expects every
`testName:` literal passed to runSkillTest to appear as a key in
E2E_TOUCHFILES. The previous entries were keyed by the outer describe
test names ("fanout: overlay ON emits...") rather than the inner
testName values ('fanout-arm-overlay-on', 'fanout-arm-overlay-off'),
which failed the completeness check.
Switched both E2E_TOUCHFILES and E2E_TIERS to use the two fanout arm
testNames as keys. The routing sub-tests use a template literal
(`routing-${c.name}`) which the scanner skips, so they inherit selection
from file-level changes to the opus-4-7.md / routing-injection.ts paths
already covered by the fanout entries.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: gstack <ship@gstack.dev>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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