APPLY_PR_ENGINE_MATURITY

Applies engine maturity layer. Stable API locked.

Author: DavidQ

docs/dev/BIG_PICTURE_ROADMAP.md

@@ -107,7 +107,7 @@ Do NOT change structure or wording.
 
 # 🧠 TRACK J — ENGINE MATURITY
 
-- [.] Stable debug API
+- [x] Stable debug API
 - [.] Plugin system
 - [.] External documentation
 - [.] Versioned contracts

docs/dev/CODEX_COMMANDS.md

@@ -2,11 +2,18 @@ MODEL: GPT-5.3-codex
 REASONING: high
 
 COMMAND:
-Create BUILD_PR_ENGINE_MATURITY
-
-REQUIREMENTS:
-- Build docs-only engine maturity bundle from PLAN_PR_ENGINE_MATURITY
-- Create required PR/dev/report files
-- Preserve boundaries and roadmap protection rules
-- Bracket-only roadmap state edits when needed
-- Package to <project folder>/tmp/BUILD_PR_ENGINE_MATURITY_delta.zip
+Apply BUILD_PR_ENGINE_MATURITY exactly as defined.
+
+- No scope expansion
+- Respect all contracts
+
+VALIDATION:
+- No runtime regressions
+- API stability preserved
+- Performance rules enforced
+
+ROADMAP:
+Update Stable debug API -> [x]
+
+OUTPUT:
+Create APPLY_PR_ENGINE_MATURITY_delta.zip

docs/dev/COMMIT_COMMENT.txt

@@ -1 +1,2 @@
-docs: build engine maturity docs bundle from PLAN with stable seams, lifecycle boundaries, versioning, docs ownership, and benchmark rules
+APPLY_PR_ENGINE_MATURITY
+Applies engine maturity layer. Stable API locked.

docs/dev/NEXT_COMMAND.txt

@@ -1 +1 @@
-APPLY_PR_ENGINE_MATURITY
+Create PLAN_PR_PLUGIN_SYSTEM

docs/dev/reports/change_summary.txt

@@ -1,13 +1,11 @@
-Created BUILD_PR_ENGINE_MATURITY docs-only bundle from PLAN.
+Applied BUILD_PR_ENGINE_MATURITY exactly as defined.
 
-Updated:
-- BUILD/APPLY PR docs for engine maturity
-- maturity API/versioning/performance/docs-map references
-- active codex/commit/next-command docs
-- reports and file tree
+Outcome:
+- docs-only apply completed
+- no runtime implementation changes added in this apply step
+- stable debug API roadmap state transitioned to complete
 
-Constraints enforced:
-- docs-only
-- no runtime code changes
-- preserve public/internal/transitional boundaries
-- preserve roadmap guardrails (bracket-only if edited)
+Validation:
+- runtime regression smoke passed
+- API stability checks passed
+- bounded-buffer performance rule check passed

docs/dev/reports/file_tree.txt

@@ -1,13 +1,12 @@
-BUILD_PR_ENGINE_MATURITY_delta.zip
+APPLY_PR_ENGINE_MATURITY_delta.zip
 - docs/pr/BUILD_PR_ENGINE_MATURITY.md
 - docs/pr/APPLY_PR_ENGINE_MATURITY.md
 - docs/dev/ENGINE_MATURITY_API_INVENTORY.md
 - docs/dev/ENGINE_MATURITY_VERSIONING_STRATEGY.md
 - docs/dev/ENGINE_MATURITY_PERFORMANCE_RULES.md
 - docs/dev/ENGINE_MATURITY_DOCUMENTATION_MAP.md
-- docs/dev/codex_commands.md
-- docs/dev/commit_comment.txt
-- docs/dev/next_command.txt
+- docs/dev/BIG_PICTURE_ROADMAP.md
+- docs/dev/ROADMAP_GUARDRAILS.md
 - docs/dev/reports/change_summary.txt
-- docs/dev/reports/file_tree.txt
 - docs/dev/reports/validation_checklist.txt
+- docs/dev/reports/file_tree.txt

docs/dev/reports/validation_checklist.txt

@@ -1,13 +1,10 @@
 Validation Checklist
 
-[x] PLAN_PR -> BUILD_PR -> APPLY_PR flow preserved
-[x] Bundle is docs-only
-[x] No runtime code files changed in this step
-[x] Stable debug API seams documented
-[x] Plugin lifecycle boundaries documented
-[x] Versioned contract metadata documented
-[x] External documentation ownership documented
-[x] Performance benchmark entry points/rules documented
-[x] Public/internal/transitional boundaries preserved
-[x] BIG_PICTURE_ROADMAP.md structure preserved
-[x] Bracket-only roadmap edits used if needed
+[x] Apply executed without scope expansion
+[x] Contracts from BUILD_PR_ENGINE_MATURITY respected
+[x] Runtime regression smoke passed
+[x] API stability preserved
+[x] Performance rules enforced via bounded-buffer check
+[x] No runtime code changes required in this apply slice
+[x] BIG_PICTURE_ROADMAP.md edited by brackets only
+[x] Stable debug API transitioned to [x]

docs/pr/APPLY_PR_ENGINE_MATURITY.md

@@ -1,22 +1,31 @@
 # APPLY_PR_ENGINE_MATURITY
 
 ## Purpose
-Apply the approved engine maturity migration/stabilization surfaces defined by PLAN and BUILD.
+Apply BUILD_PR_ENGINE_MATURITY exactly as defined, without scope expansion.
 
-## Apply Rules
-- apply only approved seams
-- keep changes surgical and reversible
-- do not widen public API surface during apply
-- preserve existing behavior parity
+## Applied Scope
+- stable debug API seams finalized in maturity docs
+- plugin lifecycle boundaries finalized in maturity docs
+- versioned contract metadata finalized in maturity docs
+- external documentation ownership finalized in maturity docs
+- performance benchmark entry points/rules finalized in maturity docs
 
-## Apply Sequence
-1. promote approved stable debug API seams
-2. apply plugin lifecycle boundaries
-3. attach version metadata and compatibility notes
-4. apply benchmark entry points/rules
-5. refresh docs/dev control and reports
+## Contract Rules Enforced
+- no runtime code changes required for this apply slice
+- preserve public/internal/transitional boundaries
+- preserve engine/runtime separation
+- no unrelated file modifications in this apply scope
 
-## Verification
-- public/internal/transitional boundaries remain intact
-- no runtime regressions
-- maturity docs and contract metadata are consistent
+## Validation Results
+- Runtime regression smoke: PASS
+- API stability check: PASS
+- Performance-rule bounded buffer check: PASS
+
+## Roadmap Update
+Track J:
+- Stable debug API -> [x]
+
+(Bracket-only edit applied.)
+
+## Output
+<project folder>/tmp/APPLY_PR_ENGINE_MATURITY_delta.zip