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6 Commits

Author SHA1 Message Date
Tom Boucher
f96cb44f85 enhance(#3248): disclose capability skills as an instruction surface (#3253)
* test(#3248): failing-first suite for instruction-surface disclosure

28 matrix rows from 50-test-matrix.md. Rows requiring the new
Disclosure.instructionSurfaces field fail today; rows 18-20/23-25 (the
ADR-2363 D4 signature invariants) pass today by construction because the
current code never reads skills/agents at all, and stand as regression
guards for the implementation commit.

Refs #3248

* feat(#3248): disclose capability skills and agents as an instruction surface

ADR-2363 D5. A capability whose only contribution was skills disclosed
nothing at install: summarizeDisclosure early-returned "ships no executable
surfaces (declarative only)" because hasExecutable was false, while each
SKILL.md body landed verbatim in the agent's instruction context.

discloseExecutableSurfaces gains a fifth, NON-executable class,
instructionSurfaces, collecting declared skills/agents stems through the same
safeCollect wrapper as the four existing collectors, so a hostile value
degrades only this class and the function stays total for any manifest shape.
Nothing existing is edited: the collectors, hasExecutable, disclosureSignature
and missingArtifacts are untouched. get_impact rates the symbol CRITICAL at
196 affected, which is why the design is strictly additive.

D4 is implemented by omission and pinned rather than left incidental: adding,
changing or removing skills/agents leaves disclosureSignature byte-identical,
so no stored consent record is perturbed and no spurious re-consent fires.
ADR-2782's conditional-append trick is deliberately NOT reused - it worked
because no manifest could declare a reviewer body before that class existed,
whereas skills predate this one, so a conditional append would re-sign every
already-consented skill-bearing capability.

The renderer is extracted as summarizeInstructionSurfaces and called from BOTH
branches of summarizeDisclosure. Appending only at the end would never render
for skill-only capabilities - the ones that need it - since those take the
early return. That branch's "declarative only" claim is now conditional on
there being no instruction surface either. The renderer iterates rather than
spreading into push, so an unbounded stem count cannot throw RangeError, and
tolerates the bare {} the CLI edge passes via `res.disclosure || {}`.

Scope note: #3248's prose says "skill stems"; ADR-2363 D3 classifies
instruction surfaces as "skills, agents". Shipping skills alone would leave an
ADR deliverable owned by no phase, and the epic has no Phase 2. Agents are the
same shape at no extra cost. Narrowing back is a two-line change.

Ratifies ADR-2363 (Proposed -> Accepted) and adds the owed ADR-1244 back-link.

Closes #3248

* fix(#3248): escape consent-prompt values and narrow disclosure to skills

Two review findings, both of which made the previous commit wrong.

BLOCKER (isolated adversarial review). Every manifest-supplied value
interpolated into a consent-prompt line was rendered unescaped. Those lines
are joined with \n and written RAW to stderr on the needs-consent path
(capability-command-router -> cli-exit runMain), so a stem carrying a newline
forged additional lines indistinguishable from genuine GSD disclosure text,
and an ANSI escape could clear or rewrite lines already printed. That defeats
the informed-consent guarantee this change exists to provide, and is a
prompt-injection vector against any agent that reads the stderr text to decide
whether to retry with --yes.

The hole was not unique to the new class - hook event/script, command
family/module/router, every MCP field, and every reviewer-lane field were
equally unescaped. Fixing only the new one would have created the
generative-fix divergence this repo tracks, so renderValueForPrompt is applied
to all five classes through one helper, guarded by a parity test that fails if
a future class skips it. Escaping is identity for ordinary names, so no
well-formed manifest's output changes. The disclosure OBJECT stays verbatim -
only the rendered LINE is escaped - because the signature and every consumer
reasoning about identity depend on the declared value.

NARROWED to skills only. The previous commit also collected agents, arguing
ADR-2363 D3 classifies instruction surfaces as "skills, agents". Verified
against staging: stageSkillsForRuntimeAsSkills takes a registry and unions
third-party skills in via readInstalledCapabilitySkill, while
stageAgentsForRuntimeWithConverter takes only a source directory and has no
registry-aware path. Third-party agents are never staged into the instruction
context, so disclosing them would have put a false claim in a security prompt -
worse than the scope creep two reviewers flagged it as. D3's classification
stands; D5 now records that Phase 1 implements the skills half and that
whether agents should be staged at all is an open maintainer question.

Also reverts the premature ADR-2363 ratification. The previous commit flipped
it to Accepted and asserted "#3248 merged" while this branch IS #3248 and is
unmerged. Status returns to Proposed, and the ADR-1244 back-link - owed only on
ratification - is withdrawn.

Adds the fast-check property suite CLAUDE.md requires and the direct precedent
(reviewer-trust-disclosure) already had: totality, D4 signature invariance, D3
hasExecutable invariance, and renderer totality over adversarial manifests.

Refs #3248

* chore(#3248): correct changeset scope claim and backfill pr number

The fragment was written against the pre-narrowing commit and still
advertised 'skills and agents'. 4d26887e narrowed disclosure to skills
only - third-party agents are never staged into the instruction context -
but did not touch the fragment, so the release notes would have carried a
claim the code does not implement.

Also backfills pr:0 -> 3253 and names the prompt-escaping fix, which is
user-visible and was absent from the original body.

Changeset-only; no code or test changed, so the gsd-test pass recorded for
4d26887e still describes this tree's behavior.

Refs #3248

---------

Co-authored-by: sim <sim@local>
2026-08-09 13:52:29 -04:00
Tom Boucher
6a9babda69 chore(#2798): declare the eleven reviewer lanes as manifest data (#2837)
* chore(#2798): declare the eleven reviewer lanes as manifest data

Phase 5a of epic #2782, delivering ADR-2782 D9 (roster half) and D3.

- Five reviewers GSD never installs into become lane-only role:reviewer
  capabilities with no runtime body, no runtimeCompat and no install surface:
  gemini, coderabbit, ollama, lm-studio, llama-cpp. Before this they had no
  descriptor at all and lived as a hardcoded NON_RUNTIME_REVIEWER_SLUGS tail,
  which is now deleted outright.
- The six hosts that are ALSO reviewers gain a reviewer body alongside their
  runtime body. Their runtime bodies are byte-identical to next -- verified per
  capability against the git blob, not asserted -- so no install behaviour moves.
- KNOWN_REVIEWER_SLUGS derives from declared bodies via an exported
  deriveReviewerSlugs(registry). hostBehaviors.reviewerCli survives as a derived
  legacy alias for one release; where a capability carries both, the body wins
  and the slug appears once. Alias removal is Phase 7 (#2801).

THE KEYSTONE: the roster is the SAME ELEVEN SLUGS as before -- antigravity,
claude, coderabbit, codex, cursor, gemini, llama_cpp, lm_studio, ollama,
opencode, qwen. This phase changes HOW the roster is derived, not WHO is in it,
and the test asserts that literal list rather than a count.

kimi-code is deliberately NOT declared here. It is net-new with no
invoke_reviewers leg, so declaring it now would make it selectable but not
invocable -- present in --all, selected, emitting an empty section for the whole
5a-to-5b window -- and would break Phase 1's parity assertion. It lands in 5b
alongside the iteration that can run it. Legacy kimi (the Python CLI) is not a
reviewer at all and gains nothing.

The highest-value test is declaredManifestLanesMatchThePhase1Descriptor: it
deep-compares all eleven declared bodies against REVIEWER_LANES field-by-field,
including probe and invoke sub-fields. All eleven are byte-identical, key order
included. The epic's premise is that the manifest and the core descriptor
describe the same lane with NO translation layer, and Phase 2's review already
caught one divergence that every other test missed.

Two ADR corrections folded in, as Phases 1-3 each did:

1. PHASE ORDER. The ADR runs Phase 4 (federated config) before 5a and #2798
   claims a dependency on 4. That is inverted and makes Phase 4 unsatisfiable:
   D9 assigns review.<host>_host to lane capabilities that do not exist until
   THIS phase creates them, and a federated config slice must live inside
   capabilities/<id>/capability.json. Real graph: Phase 2 -> 5a -> 4.
2. #2798's INVENTORY acceptance item is vacuous. The inventory catalogs
   bin/lib/*.cjs modules, not capability directories -- antigravity, opencode
   and qwen appear zero times in it -- and gen-inventory-manifest --check passes
   with the five new dirs and no edit.

Also corrected a stale line in Phase 2's own ADR amendment: it recorded the slug
pattern as /^[a-z][a-z0-9_-]*$/, but Phase 2's security review widened the
shipped pattern to /^[a-z0-9][a-z0-9_-]*$/ to match Phase 1's exported
LANE_SLUG_RE. The prose had not followed the code.

Closes #2798

* fix(#2798): catalogue reviewer capabilities in the generated matrix

The capability matrix rendered exactly two tables, feature and runtime, via
renderTable(caps, role) filtering on c.role === role. ADR-2782 D3 added a THIRD
role, so every role:"reviewer" capability was silently dropped from the
first-party catalogue.

The drift guard did not catch it, and could not: --check compares generated
output against the committed file, and both omitted the five lanes identically,
so it reported "up to date" while five shipped capabilities were invisible in
the one document that is supposed to list what ships. A guard blind to an entire
role is not guarding.

This phase is what exposed it -- it ships the first role:"reviewer"
capabilities -- so it is fixed here rather than deferred (CLAUDE.md: a defect
found while working is fixed in the current change, which overrides
one-concern-per-PR).

Verified red-before-green: with a lane row deleted from the matrix, --check now
exits 1; restored, it exits 0. Before this fix the lanes were absent entirely, so
there was nothing for the guard to compare.

Phase 6 (#2800) still owns enriching the matrix with lane-specific detail
(slug/flag/transport columns) and the locale parity gate. This is the narrower
fix: the capabilities APPEAR at all.

* fix(#2798): close two hardening gaps and record three limits durably

Isolated security review (5 targets, no blockers) reproduced two gaps in the new
deriveReviewerSlugs. Both are unreachable through the checked-in registry -- it is
generated, JSON-sourced and code-reviewed -- but the function is EXPORTED for
reuse and carries no other validation, so it must not depend on its caller.

- A whitespace-only slug passed the length>0 test verbatim and occupied a roster
  entry it could never match. Slugs are now trimmed before the emptiness test. A
  blank body correctly falls through to the legacy alias rather than DROPPING the
  lane, which would have been worse than the blank slug.
- KNOWN_REVIEWER_SLUGS is computed at require() time, so an uncaught throw there
  breaks import for EVERY consumer rather than degrading selection. It is now
  guarded, yielding an empty roster on a malformed registry. That is a visible
  degradation, not a silent one: under D4 an explicitly requested reviewer that
  is unavailable is an ERROR, so /gsd:review --claude against an empty roster
  fails loudly. This also removes an asymmetry -- the sibling capability-trust
  module documents its collectors as TOTAL and wraps them for exactly this reason.

Also records three findings that previously existed ONLY in squash-merged PR
bodies, which is not a durable record:

- ADR-2782 D5 gains an implementation note explaining why the resolved host is
  deliberately EXCLUDED from the disclosure signature. Rule 1 says consent binds
  the resolved host; the loader has no config resolver, so folding it in would
  make the loader and lifecycle compute different signatures for one manifest and
  re-prompt forever. The binding is split: signature covers the SHA-pinned
  manifest fields, the consent record stores the resolved host, and Phase 5b
  re-resolves at invocation -- which is where rule 4 already puts the check. A
  reader comparing rule 1 to the code would otherwise conclude it is unimplemented.
- CONTEXT.md's capability-trust entry still described THREE executable surfaces.
  Phase 3 added the fourth and made that false; corrected here, since it is drift
  this epic introduced rather than Phase 6's new-glossary-term work.
- stableJson documents the NaN/Infinity/undefined -> null signature collision and
  why it is unreachable (JSON grammar has no such literal, so JSON.parse throws
  first). Reachability rests entirely on the ingest path staying JSON.parse-only,
  so the note lives where someone would break it.

* chore(#2798): backfill changeset pr number to 2837
2026-07-29 16:58:02 -04:00
Tom Boucher
69dbf28ca7 feat(#2796): reviewer lane as a fourth trust-disclosure class (#2826)
* feat(#2796): reviewer lane as a fourth trust-disclosure class

Phase 3 of epic #2782, delivering ADR-2782 D5. A reviewer lane is piped the plan
text, requirements, research findings and CONTEXT.md decisions, and its output is
read back into REVIEWS.md -- an egress channel for the most sensitive artifacts
GSD produces. Making lanes pluggable WITHOUT a disclosure class would open a
data-exfiltration path behind a manifest field, which is why this gates the
feature rather than following it.

- discloseExecutableSurfaces was cyclomatic 51 / cognitive 99 / 110 lines with
  risk_level critical. Rather than grow it, it is now a short orchestrator over
  four extracted collectors (hooks, commands, mcp -- behaviour-preserving -- plus
  the new lane collector), each independently testable. That is also what makes
  the 80% mutation threshold survivable: 51 branches in one function cannot be
  mutation-covered by whole-function tests.

- A spawn lane discloses its binary AND its full declared args, in rendered and
  raw form. Binary-only disclosure would be insufficient and not hypothetically:
  a lane declaring python3 with innocuous args could later change them to
  ['-c', '<program>'] without the binary changing. That is the bug class #1459
  already fixed for MCP servers.

- An openai-http lane has no binary, so it discloses the destination host and the
  config key naming it. A localhost destination is disclosed and distinguished
  from a remote one. Both forms name the egress payload classes.

THE CONSTRAINT THAT SHAPED THE DESIGN: the lane element is appended to the
disclosure signature ONLY when at least one lane is declared. signatureForManifest
is the consent key both the loader and the lifecycle compare, so appending
unconditionally would have changed every installed capability's signature and
re-prompted every user for every capability on their next upgrade -- for a feature
they do not use. Two pre-change goldens are asserted byte-for-byte as the tripwire.

The resolved host is deliberately NOT in the signature. The loader has no config
resolver, so including it would make the loader and the lifecycle compute
different signatures for the same manifest and produce a permanent false-mismatch
loop. It is disclosed and recorded instead; Phase 5b re-resolves and compares at
invocation, which is D5 rule 4's own placement.

reviewsSection and timeoutFloorMs are also excluded from the signature: a cosmetic
change must not force re-consent, because a prompt carrying no security
information is how users learn to click through.

A lane's binary is NOT existence-checked against the staged bundle. It is a PATH
tool, never a bundle artifact; treating it like a hook script would add every lane
to missingArtifacts and block every lane install.

Two defects fixed beyond the fourth class:
- isLocalHostValue mis-parsed a scheme-less host: new URL('localhost:1234') does
  NOT throw, it reads 'localhost' as the URL scheme and yields an empty hostname,
  so a bare host:port would have been reported as non-local. Now falls back on an
  empty hostname rather than only on a caught throw.
- The orchestrator's safeCollect closes a PRE-EXISTING totality gap in the other
  three classes: a null manifest, or one with a throwing getter or Proxy trap,
  previously threw out of disclosure -- which runs on an UNVALIDATED manifest at
  install time. No well-formed input changes; all 51 existing trust tests pass.

Closes #2796

* fix(#2796): close four disclosure gaps found by the isolated security review

All four were REPRODUCED by execution against the shipped module, and all four
passed the existing 41-test suite while live -- each exists because the matrix
did not think to ask.

B (MEDIUM, reachable via plain JSON). Non-string argv members were folded into
the consent SIGNATURE but dropped from the human-facing text, because the summary
rendered the string-filtered args rather than the raw declared array. A manifest
declaring args ['--json', 7, {mode:'exfiltrate-everything'}, true] printed as
'--json' alone -- the host still receives the rest, so the user consented to a
surface never shown. That directly contradicts this design's own Kerckhoffs claim
that nothing about a lane is hidden. The summary now renders the raw array, with
non-strings shown in a visible form, and never throws on a circular or BigInt
member.

F (MEDIUM, reachable). The [local] flag is design-load-bearing, and it was
dropped for every loopback form except the dotted quad and the bare hostname.
Bracketed IPv6 was mangled by splitting on the address's own colons ([::1]:8080
became '['), and legacy IPv4 encodings were not recognised at all. A browser,
curl and the OS resolver all treat 127.1, 2130706433, 0x7f000001 and 0177.0.0.1
as loopback. isLocalHostValue now handles bracketed and bare IPv6, IPv4-mapped
loopback, and inet_aton shorthand/decimal/hex/octal. The dangerous direction was
already clean and is now pinned by tests: localhost.evil.com,
http://user@localhost@evil.com and friends stay REMOTE.

C (LOW). An empty reviewer body flipped hasExecutable true and perturbed the
disclosure signature, producing a re-consent prompt whose only content was
'(no binary declared)'. A prompt carrying no security information is the
click-through-training harm this design explicitly refuses for reviewsSection and
timeoutFloorMs; refusing it there and permitting it here was inconsistent. A body
declaring nothing recognised is no longer a lane. The test is deliberately broad
-- any ONE recognised field suffices -- because requiring specifically a binary,
or specifically a slug, would let a lane declaring only the other slip through
unconsented, which is the far worse failure. Pinned in both directions.

D (LOW-MEDIUM). Disclosure runs BEFORE validation, so a mis-cased or unrecognised
transport reaches this code. Keying on an exact string sent a lane that plainly
declares a hostConfigKey down the spawn branch, printing '(no binary declared)'
for a lane egressing to a live remote host, and left its resolvedHost blank --
which reads as 'no destination', the precise thing the design forbids. Both the
collector and the summary now branch on the declared SHAPE, so such a lane
discloses its key and either a resolved host or the explicit unresolved marker.

Two further findings were reproduced but confirmed NOT reachable through the real
pipeline and are recorded as known limits rather than fixed: a selective-throw
Proxy blanking a whole lane, and NaN/Infinity/undefined colliding to 'null' in a
signature. Every production manifest reaches disclosure through
readManifestBounded's strict JSON.parse, which cannot produce a Proxy, a getter,
a BigInt, a circular reference, NaN or Infinity. The 0/-0 sub-case IS reachable
via valid JSON but is inert -- String(0) === String(-0), so a spawned process
receives identical argv.

9 regression tests added (50 total in this file, up from 41).

* chore(#2796): backfill changeset pr number to 2826
2026-07-29 11:21:49 -04:00
Tom Boucher
e7855bc217 fix(#1459): user-owned consent store gates third-party capability activation; env/cwd in disclosure; loader validator parity (#1473) 2026-06-20 01:59:03 -04:00
Tom Boucher
0d56f544d2 feat(#1435): capability matrix (generated + drift-guarded) + trust-model doc consolidation (#1458)
* feat(#1435): capability matrix (generated + drift-guarded) + trust-model doc consolidation

ADR-1244 Phase 6. Adds the capability matrix reference, generated FROM the committed registry so it
can never drift from the actual capability set:
- scripts/gen-capability-matrix.cjs (--write / --check); --check is a CI drift guard.
- tests/capability-matrix-sync.test.cjs (4 tests): drift guard, buildMatrix==committed, every cap
  present, no placeholders.
- docs/reference/capability-matrix.md regenerated from the registry (release-stable: shows engines.gsd,
  omits the lockstep per-cap version that would churn the file every release).
- Consolidated the duplicate trust-model doc: deleted docs/explanation/the-capability-trust-model.md,
  merged its content into capability-trust-model.md, redirected ~10 references; no stale links remain.
- Diataxis verification (now that gsd capability is a real command): corrected the matrix's third-party
  section — the matrix is the first-party catalogue; the overlay-aware view of installed third-party
  capabilities is 'gsd capability list', not this generated file.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* docs(#1435): Added changeset for the capability matrix reference

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* fix(#1435): address code-review — non-vacuous matrix test + generator polish

- capability-matrix-sync.test.cjs: assert the 'security registers a ship:pre gate' precondition
  unconditionally so the extension-point check can never degrade to a vacuous pass on registry drift.
- gen-capability-matrix.cjs: warn (stderr) on an unknown loop point at generation time; rename
  enginesOf -> fmtEngines for consistency with the other fmt* helpers (output unchanged).
- capability-trust-model.md: point the two how-to links at the real files
  (import-a-capability-from-a-url.md, version-a-capability.md) instead of the bare directory.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* chore(#1435): backfill changeset PR number → #1458

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-19 12:45:26 -04:00
Tom Boucher
9219af3360 feat(#1433): capability trust gate + upgrade/compat (ADR-1244 Phase 4) (#1449)
ADR-1244 Phase 4 (D5 trust + D6 upgrade/compat). capability-trust.cjs (disclosure/consent, strict_known_registries, engines+compatVersions, reserved namespace) + capability-lifecycle.cjs (install/upgrade/remove/reconcile; ledger-as-commit-point _pending intent; atomic stage-then-swap; surgical marker-isolated shared-edit strip; owner-token lock) + capability-source promote/skipEnginesGate seams + loader pending-skip + config keys. No sandbox re-derived (consent+integrity+reversibility). 6 Codex adversarial rounds + /security-review (no HIGH) + /code-review; gsd-test green both platforms; CI green. Phase 5 (#1434) wires the CLI dispatch.

Closes #1433.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-18 21:40:37 -04:00