23a65c4a3d
* test(#2322): fail-first tests for third-party capability skill materialization Red phase: tests (1) and (6) fail — resolveSurface reports the third-party stem surfaced (#2045) but no SKILL.md is ever written to disk. The other four are controls that must keep holding: first-party-wins collision, profile-tier filter, nested-router layout unperturbed, and absent/malformed capability must not throw. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * fix(#2322): materialize installed third-party capability skills A capability could report installed:true, surfaced:true, active:true and still never exist as an invocable command. #2045 fixed the registry layer — resolveSurface unions registry.capabilityClusters into the resolved skill set — but the materialization layer never got the matching fix. stageSkillsForRuntimeAsSkills only ever read gsd-core's own bundled commands/gsd/*.md and silently skipped any stem it couldn't find there, so a third-party skill living at <GSD_HOME>/.gsd/capabilities/<id>/skills/<stem>/ was never copied. Registry said surfaced; disk had nothing. Installed capability skills are now staged alongside the first-party ones, copied verbatim (they are authored complete for their target runtime and need no converter). First-party stems always win a collision, the profile filter still applies, and an absent or malformed capability degrades rather than throwing. Security: capability.json's skills[] entries are validated only as non-empty non-reserved strings (capability-validator.cjs:503-514) — no path shape is enforced upstream — so stems are sanitized (rejecting separators, '..', absolute paths, NUL) with an independent isPathConfined check on both the read and write paths. A '../../evil' stem writes nothing outside the capability's own dir. Also fixes a defect this surfaced in pruneSkillDirs: a materialized capability skill dir has no first-party manifest entry, so every apply logged "preserving (user-owned or unknown)" for a live GSD-managed dir. The retained check now precedes the manifest gate; no deletion outcome changes, and genuinely unknown gsd-* dirs still warn and are preserved. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * fix(#2322): address security review — bind skills to declaring capability, fix full profile An independent security review BLOCKED the first pass. Both blockers were mine. BLOCKER 1 (security): readInstalledCapabilitySkill scanned every capability dir and returned the first sorted match, never checking that a capability DECLARES the stem — ownership was inferred from attacker-controlled filesystem layout. Since install copies the whole bundle and the validator only checks DECLARED entries, a capability declaring `skills: []` could ship an undeclared skills/deploy/SKILL.md and win the `deploy` stem on sort order, supplying the agent-invocable instructions the user believed came from the registered capability. Stems are now bound to their owning capId via registry.capabilityClusters, and only that capability's dir is read. BLOCKER 2: the fill-in pass was gated `skills !== '*'` on the premise that applySurface materializes `full` into a concrete Set. True for applySurface — false for the installer, which is the default path: resolveProfile returns the '*' sentinel and bin/install.js passes it straight to staging. So #2322 survived on the default `full` profile, i.e. the fix didn't fix the reported bug. The registry is now plumbed to staging, and '*' stages all capability-cluster stems. Wiring this surfaced a second gap: the ADR-1239 imperative adapter (the primary install path) never threaded its registry either, which would have silently defeated the fix on the real default install. HIGH: staged capability skills were never prunable — pruneSkillDirs gates on the first-party manifest, so uninstalling a capability left its instructions live in the agent's context forever. Staged skills now carry a marker making them GSD-owned and prunable; genuinely unknown gsd-* dirs still warn and are preserved. MEDIUM: the "staged verbatim" claim was false — applySurface rewrites bodies over the whole stage dir. The tests asserted byte-equality and passed only because their fixtures contained no rewrite triggers. Claim dropped; tests now assert the rewrite against triggering content. LOW: isPathConfined is lexical, not realpath (symlink-defeatable, currently unreachable because install rejects symlinks) — comment corrected. The validator does not enforce non-empty, so isSafeCapabilitySkillStem is the sole defense, not a second layer — comment corrected and it now has traversal/NUL/absolute/empty test coverage (previously mutating it to `return true` left every test green). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * test(#2322): pin that the imperative adapter forwards a capability registry The delegation-args test deep-equalled the exact argv to installRuntimeArtifacts, so threading the composed capability registry through the ADR-1239 imperative adapter (required for #2322 — without it the default `full` install path never materializes third-party capability skills) failed it. The contract legitimately gained a parameter, so this is a stale-test correction, not a regression. Rather than deep-equalling the whole composed registry (brittle — it embeds the full agent/profile map), the test pins the leading args exactly and asserts only that a registry-shaped value is forwarded. That still fails if the adapter stops threading it, which is the regression the test exists to catch. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA * docs(#2322): backfill PR number 2340 into changeset Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SLufH5sDuqA1AiEGu45cuA --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
785 B
785 B
type, pr
| type | pr |
|---|---|
| Fixed | 2340 |
Installed third-party capability skills now materialize as real slash commands — a capability could pass every check (installed: true, surfaced: true, active: true) and still never exist on disk: the registry layer counted the capability's skill as surfaced, but the file-copy step only ever scanned gsd-core's own bundled commands, so nothing was ever written to the runtime's skills/ directory and the command was never invocable. Installed capability skills are now staged from where they live, bound to the capability that actually declared and registered them (never inferred from directory listing order), and are subject to the same runtime-targeted body rewrites as first-party skills — first-party skills still win any name collision.