d2518e142d
* feat(#1681): ADR-1239 Phase C-2 — wire trust gate into loadRegistry (configHome confinement) [slice 2] Phase 4 slice 2. loadRegistry({includeInstalled:true, configHome}) now rejects (skip + warn, fail-closed) any installed third-party descriptor whose declared destSubpath resolves outside the supplied configHome, BEFORE it is composed. - src/capability-loader.cts: LoadRegistryOptions.configHome?:string (optional, backward-compatible). Require external-descriptor-trust.cjs (typed). Before overlayCaps.push(cap), if configHome set, assertDescriptorConfined(cap, configHome) — on throw, skip('configHome confinement rejected: ...') + continue. Fail-closed via the loader's existing per-candidate skip semantics. - tests/external-descriptor-loader-wiring.test.cjs: integration test — escaping overlay skipped with confinement reason when configHome set; confined overlay composes; omitted configHome = no load-time check (backward-compatible). Defense-in-depth with Phase 2: load-time rejects malformed descriptors early (this slice); install-time assertDestWithinConfigHome bounds actual writes (#1679 AC3). Existing capability-loader.test.cjs 54/54 (no regression — additive optional option). Companion MCP server -> slice 3. * chore(changeset): add Changed fragment for loadRegistry configHome confinement wiring (#1681)
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702 B
Markdown
8 lines
702 B
Markdown
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type: Changed
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pr: 1808
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---
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**Internal: third-party descriptor loader enforces `configHome` write-confinement at load time** — `loadRegistry({includeInstalled:true, configHome})` now rejects (skip + warn, fail-closed) any installed third-party host-plugin descriptor whose declared `destSubpath` resolves outside the supplied `configHome`, before it is composed into the registry (ADR-1239 Phase C-2 / #1681 slice 2). The `configHome` option is optional and backward-compatible (omitted → no load-time check; install-time gate still bounds writes). No user-facing change for existing flows.
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<!-- docs-exempt: internal loader hardening; no user-facing doc surface until slice 3's MCP server -->
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