Files
msd-core/examples/dynamic-context-management
Tom Boucher bcf7b04864 chore(#2896): convert CONTEXT.md prose defect registry into enforced gates (#3325)
* chore(#2896): convert CONTEXT.md prose defect registry into enforced gates

Squashes the prior 4-commit sequence and fixes defects found while
resuming this branch: 5 orphaned/corrupted DEFECT fragment lines left
by an earlier botched edit, 17 "Source of truth: Memtrace `find_symbol`"
placeholders that had destroyed real file-path citations, and 3
DEFECT.GENERATIVE-* entries merged into one RULESET.GENERATIVE-FIX
predicate (policy, not an unenforced defect) to satisfy the zero
DEFECT.<NAME>.<field>= acceptance criterion.

Six mechanizable defects get real gates: DEFECT.UNBOUNDED-SUBPROCESS
(eslint-rules/require-subprocess-timeout.cjs), DEFECT.CANARY-VERSION-LEAK
(scripts/lint-canary-version-leak.cjs + version-gate.yml),
DEFECT.CHANGESET-PR-FIELD-DRIFT (findPrFieldDrift in changeset/lint.cjs),
DEFECT.FRONTMATTER-SCALAR-BROAD-GREP, DEFECT.REMOVED-BUT-NEEDED, and
DEFECT.DEFAULT-FLIP-DOCUMENTATION (new lint scripts, wired into lint:ci).
Already-enforced and unenforceable prose entries are deleted; the gate
is the record.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2896): route the new lint tests' subprocess calls through the bounded process-seam helper

The 4 new test files for this PR's lint checks called cp.spawnSync/
execFileSync directly with no timeout, tripping this repo's own
existing local/no-unbounded-spawn ESLint rule. Route every one through
runNode/gitOrThrow (tests/helpers/process-seam.cjs,
tests/helpers/git-fixture.cjs) instead, matching the pattern already
used elsewhere in the suite (e.g. tests/changeset-lint.test.cjs).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix: register claude-orchestration.cjs and regenerate stale generated indexes

Pre-existing drift on next, unrelated to this PR's own change, surfaced
by running lint:ci as part of verifying #2896: two cli_modules
(claude-orchestration.cjs, write-set.cjs) landed without a manifest
regen, and CONTEXT.md's own edits in this PR staled its two generated
indexes. Adds the missing docs/INVENTORY.md row for
claude-orchestration.cjs (write-set.cjs already had one — only its
manifest entry was stale) and regenerates
docs/INVENTORY-MANIFEST.json, docs/CONTEXT-INDEX.json, and
examples/dynamic-context-management/CONTEXT-INDEX.json.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2896): default-flip-documentation lint's local fallback base was main, not next

Found in review: every other base-ref fallback in this repo (see
scripts/changeset/lint.cjs's DEFAULT_BASE, #2988) defaults to `next`,
the integration branch every PR actually targets — `main` is the
release branch. This script's local fallback (used only when
GITHUB_BASE_REF is unset, i.e. never in CI, but potentially on a local
or direct invocation) diffed against the wrong ref. No test exercised
the unset-env-var path, so it shipped unnoticed; every e2e test sets
GITHUB_BASE_REF explicitly and is unaffected by this fix.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2896): stale eslint comment, overclaiming CONTEXT.md wording, and an incompletely-regenerated manifest

Found by the isolated Standards code-review pass:
- eslint.config.mjs's require-subprocess-timeout comment said "'warn'
  for now... flip to 'error' once migrated" while the rule already
  shipped as 'error' with all 8 sites migrated in the same commit —
  described a state that never existed.
- The CONTEXT.md pointer block claimed the rule's bounded call sites
  "never throw", but roadmap-upgrade.cts's pre-mutation clean-tree
  check correctly still throws on failure (it gates a destructive
  real-run migration; degrading to "assume clean" would risk clobbering
  uncommitted work) — softened the claim to describe both shapes
  accurately instead of overclaiming one.
- docs/INVENTORY-MANIFEST.json's claude-orchestration.cjs/write-set.cjs
  entries from the prior "fix: register claude-orchestration.cjs..."
  commit didn't actually land — re-running the generator now includes
  them; lint:generated-sync is green.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* chore(#2896): backfill changeset pr field with the real PR number

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

* fix(#2896): normalize buildCorpus file paths to POSIX in lint-removed-but-needed

Windows CI caught it: path.relative(root, abs) returns backslash-
separated paths on Windows, but findSurvivingReferences's package-lock
special case does file.startsWith('.github/workflows') — a forward-
slash literal. On Windows the check silently never matched, so
tests/removed-but-needed-lint.test.cjs's real-defect-shape fixture got
exit 0 instead of the expected exit 1. Normalize at the production
source (RULESET.CONTENT-PATH-NORMALIZATION) rather than the test side.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-10 12:55:52 -04:00
..

Dynamic context management — Option-E reference example

Reference example for ADR-1671, "Dynamic context management platform."

This is a non-shipping reference example. It lives outside the build (src/ → bin/lib/), the npm package files[], the installer, and the CI test suite (tests/). Nothing here is compiled into or installed with GSD. The production implementation lands in a later phase of the Dynamic Context Management epic (#1671).

What it demonstrates

The predicate fact-store → JIT selector slice of the platform: parse the repo-root CONTEXT.md CLASS.subkey=value predicates into structured records, drift-guard a generated index, and select the relevant predicate subset for a task — the building block for just-in-time agent-brief assembly instead of hand-citing a 200 KB file.

Files

  • context-predicates.cjs — parser + selector + deterministic index builder (self-contained).
  • gen-context-index.cjs — --check / --write drift-guarded generator + --select.
  • CONTEXT-INDEX.json — sample generated output (415 predicates, 20 classes).
  • demo.cjs — runnable usage example.

Run (from the repo root)

node examples/dynamic-context-management/demo.cjs
node examples/dynamic-context-management/gen-context-index.cjs --select PRED.k320
node examples/dynamic-context-management/gen-context-index.cjs --check

Validation

During research this slice was validated with 42 behavioral tests — predicate forms, fenced-code / prose skipping, duplicate-id detection, the selector, a deterministic index, and a fast-check property test. The production implementation has since landed, with tests/context-predicates.test.cjs and tests/context-index-sync.test.cjs as its behavioral tests under tests/, and scripts/lint-example-parser-parity.cjs (wired into npm run lint:ci) asserting this example and production agree.

Research also surfaced 3 latent duplicate predicate IDs in CONTEXT.md (RULESET.WORKFLOW_MARKDOWN.FENCES, RULESET.GEMINI.TOOLS.ask_user, RULESET.GEMINI.TEST_SENTINEL) at the time; all three have since been resolved and the current index carries 0 duplicate ids.