Files
msd-core/.changeset
Tom Boucher 21b81ea068 feat(#1681): ADR-1239 Phase C-2 — external-descriptor trust gate (configHome confinement) [slice 1] (#1806)
* feat(#1681): ADR-1239 Phase C-2 — external-descriptor trust gate (configHome confinement) [slice 1]

Phase 4 slice 1. Load-time, fail-closed configHome write-confinement for
installed third-party host-plugin descriptors — defense-in-depth on top of the
existing opt-in/schema/consent/first-party-wins loader gates + Phase 2's
install-time assertDestWithinConfigHome (#1679 AC3).

- src/external-descriptor-trust.cts: isPathConfined(target, root) pure
  cross-platform containment primitive + assertDescriptorConfined(descriptor,
  configHome) — walks runtime.artifactLayout global/local destSubpaths, throws
  fail-closed (naming descriptor + path) on the first escape. Rejects ../escape
  + absolute-outside-root. Missing layout / invalid entries skipped.
- tests/external-descriptor-confinement.test.cjs: 7 tests (containment
  primitive, benign passes, global/local/absolute escapes rejected, missing
  layout, invalid entries).

Load-time twin of Phase 2's install-time gate — rejects malformed/escaping
descriptors BEFORE consent even matters. NOT wired into loadRegistry yet
(slice 2, 4 callers, medium blast radius); this ships the reusable gate + tests.
Not the ADR-1577 prompt-injection breaker (separate concern, shared word trust).

Proactive CI gates: ADR-457 ignores + INVENTORY-MANIFEST + injection-scan audit.
All clean locally (7 tests + security + inventory + eslint 0 problems).

* chore(changeset): add Changed fragment for external-descriptor trust gate (#1681)
2026-06-28 12:00:43 -04:00
..

Changeset Fragments

This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.

Why

Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.

See #2975 for the full rationale.

Adding a fragment

node scripts/changeset/new.cjs \
  --type Fixed \
  --pr 1234 \
  --body "fix the thing — explain the user-visible change in one sentence"

This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.

Format

---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.

Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.

Opting out

PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.

At release time

Promotion is automatic. The release workflow's finalize job runs:

node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty

This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.

Archived fragments

.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.