chore: bump version and changelog (v1.57.0.0)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,58 @@
 # Changelog
 
+## [1.57.0.0] - 2026-06-07
+
+## **Three more heavyweight skills load lighter, and every carved skill finally has a test that proves it loads.**
+## **`/cso`, `/document-release`, and `/design-consultation` shed ~49KB of always-loaded prose; CI now blocks any carve that ships without its guards.**
+
+gstack splits its biggest skills into a small always-loaded skeleton plus on-demand
+sections that load only when a step needs them. This release carves three more,
+`/document-release`, `/design-consultation`, and `/cso`, so the first time you invoke
+them the agent reads far less. It also closes a gap from the earlier carves: only two
+of six already-carved skills had a test proving an agent actually reads the section it
+was told to read. Now all nine carved skills are guarded the same way, and CI blocks
+any future carve that ships without its guards. `/cso` got extra care: its mode
+dispatch and false-positive-filtering rules stay always-loaded, so a security audit
+can never run with a rule stranded in an unread section.
+
+### The numbers that matter
+
+Measured with `wc -c <skill>/SKILL.md`; the skeleton+sections union is reproduced by
+`bun test test/parity-suite.test.ts test/skill-size-budget.test.ts`.
+
+| Skill | Always-loaded before | After | Δ |
+|---|---|---|---|
+| /design-consultation | 80,719 B | 59,229 B | **−27%** |
+| /document-release | 59,256 B | 45,797 B | **−23%** |
+| /cso | 79,383 B | 65,117 B | **−18%** |
+| Carved skills with a section-load guard | 2 of 6 | 9 of 9 | **full coverage** |
+
+Total always-loaded prose across the three skills drops about 49KB (~12K tokens) on
+first invoke, with nothing lost: every line moved into an on-demand section the
+skeleton points at, and the parity suite checks the union still contains it.
+
+### What this means for you
+
+Run `/cso`, `/document-release`, or `/design-consultation` and the agent does less
+reading before it starts working, so the session stays leaner. The carve pattern is
+now safe to extend: a free static test runs on every PR and a behavioral test runs
+weekly to prove the agent reads each section, so future slimming can't quietly drop
+behavior. Nothing about how you invoke these skills changed.
+
+### Itemized changes
+
+#### Added
+- Canonical carved-skill guard registry (`test/helpers/carve-guards.ts`): one source of truth for which skills are carved and what each must preserve. `parity-harness.ts` and `skill-size-budget.ts` derive their carved-skill lists from it.
+- Carve guard suite: data-driven static ordering test, behavioral section-loading test (periodic), a completeness meta-guard that fails CI if a carved skill lacks its guards, and negative tests proving the guards actually fire.
+- `/cso`, `/document-release`, and `/design-consultation` carved into skeleton + on-demand sections.
+
+#### Changed
+- `/cso` keeps its mode dispatch (`## Arguments`, `## Mode Resolution`), always-run phases, and false-positive-filtering exceptions always-loaded; an earliest-use invariant enforces that dispatch appears before any on-demand read.
+
+#### For contributors
+- Redaction, taxonomy, and parity content tests now read the skeleton+sections union so relocated prose still counts toward coverage.
+- Real-session section-read canary deferred to TODOS (the deterministic guards ship first).
+
 ## [1.56.1.0] - 2026-06-03
 
 ## **`/sync-gbrain` can no longer delete your repo. Cleanup now refuses any directory it cannot prove it created.**

VERSION

@@ -1 +1 @@
-1.56.1.0
+1.57.0.0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gstack",
-  "version": "1.56.1.0",
+  "version": "1.57.0.0",
   "description": "Garry's Stack — Claude Code skills + fast headless browser. One repo, one install, entire AI engineering workflow.",
   "license": "MIT",
   "type": "module",