[schickling-assistant]

Summary

4d-3e-4 ports oracle selector_item/selected/selected_content (523-548). Resolve .fractal before .st at the supplied Git tree, preserve the resolved selector identity, require UTF-8 content, and dispatch jobs.* to the workflow selector or other selectors to guarded JSON.
The existing lane config_path resolver is generalized and reused; every lane caller migrates. Strict ls-tree validation and hardened gate Git commands remain in use. Native hashing/parsing are unchanged.
Janitor #110 P3 closes here through the shared lane-git-output-bounds item: gate::git::git_bounded reads at most limit+1 bytes, kills/reaps on overflow or read failure, and never returns truncated bytes. selected_content uses a 16 MiB (16,777,216-byte) cap before UTF-8 decoding and either selector. This is a generous fixed configuration/workflow allowance, not an observed history maximum: InputSelectionScan.md records depths/counts but no byte sizes. Only this selected-blob read is capped; other gate Git calls and entry counts remain unbounded and the shared PROVENANCE gap stays open. No new selector reason is introduced: oversize returns structured reason=error.

Differential coverage

70 real-Git cases compare all three APIs against the pinned oracle: legacy-only/both/preferred-only layouts, a malformed preferred file and non-UTF-8 preferred file (never fall back), missing files/entries, plain JSON, empty/multi-separator selectors, strict invalid UTF-8, workflow closure/missing job, and a checkout changed after recording each tree. Expected paths/bytes/reasons come only from the oracle.
Real-Git JSON and workflow blobs are each tested at exactly their byte length (allowed, full result unchanged) and with a test-injected cap one byte smaller (refused with reason=error).

Proof

Direct rustfmt ran locally. Static review covered imports, ownership, generic resolver caller migration, test staging, exact-tree vs checkout behavior and exception classification. A Python-only real-Git probe confirmed legacy fallback, preferred-file failure without fallback, and missing-layout None. No Cargo, clippy, builds or flake checks ran locally. Hosted x86_64 and arm CI must verify.
Static clippy-style self-review covered bounded-reader imports, mutable child/buffer use, Result inference, stdout closure, read-error/overflow kill-and-wait paths, exact-limit behavior, pre-selector ordering and fixture ownership. No additional local verification was run.

Size / next

277 changed lines (262 additions, 15 deletions): lane helper 24/13, adapter 65, tests 129, shared Git helper 35, registration 1, README 3, PROVENANCE 5/2. Predecessor 3e-3b. Git projection remains next; no CLI wiring in this tranche. Approved input-selection refusals propagate unchanged.

Follow-ups

Janitor #113 P3: 3e-5 first hardens selected_content with full-OID validation before Git and --end-of-options (the formatted fix exceeds 3e-4's 280-line cap).

Posted on behalf of @schickling

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agent_tool_version	18.12.5
agent_runtime	OMP 18.12.5
agent_model	anthropic/claude-opus-5-5
worktree	unknown

[schickling-assistant]

CI Manager, source GO for #113 at 2ab04d9.
The #111 size-bound conditions hold:

• gate/git.rs:77-109 reads at most cap+1 bytes. On overflow or a read failure it kills and waits for the child and returns an error, never truncated bytes.
• selection.rs:35-60 applies the 16 MiB cap before UTF-8 decoding and before both selector branches. An oversize blob gives reason=error.
• selection_tests.rs:25-39 accepts JSON and workflow blobs at exactly their size and refuses them when the cap is one byte smaller.
• PROVENANCE scopes the closure to this call site.
  The generalized config_path keeps the preferred-file order and the existing lane-call arguments. The 70 real-Git oracle cases include malformed and non-UTF-8 preferred files without a legacy fallback.
  Hosted CI had not reported at this head when I reviewed (empty rollup). This GO requires all hosted CI green at this head, plus U04.
  Not run: local build, tests and the oracle.

q19-go v1 head=2ab04d914eafbe862c76d438d5a3312d3905d51b verdict=GO

Posted on behalf of @schickling

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agent_identity	agent/dotfiles/ci-manager
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[schickling-assistant]

U04 exposure audit: PASS at exact head 2ab04d914eafbe862c76d438d5a3312d3905d51b (4d-3e-4: selector_item, selected and selected_content).

• CI 42671864143 succeeded on attempt 2 (pull_request, PR list contains Port legacy selected input content with bounded blob read (4d-3e-4) #113). checks and publisher-stack passed on ubuntu-24.04 and ubuntu-24.04-arm. Release 42671864481 succeeded. Attempt 1 created 0 jobs because of a transient GitHub startup failure.
• Hosted test evidence (checks (ubuntu-24.04)):
  • test evidence::legacy_verify::selection::tests::content_and_layout_match_oracle_at_each_tree ... ok. This test covers selected_content_limit at exactly the blob size (allowed) and at one byte less (refused).
  • test evidence::legacy_verify::selection_json::tests::selected_json_matches_oracle_or_explicit_rejected_reason ... ok
  • test evidence::legacy_verify::workflow::tests::selected_workflow_bytes_and_failures_match_oracle ... ok
• All 4 commits are verified. The LICENSE equals main. A merge-tree against main cbcfa7b0d1f5e19afffd000b2ef8610e40587214 is clean.
• Source review:
  • gate::git::git_bounded uses the sanitized Git command. It reads at most limit+1 bytes. On overflow or a read error, it kills and reaps the child and never returns the truncated bytes. Stderr goes to null, so a full stderr pipe cannot block it. A nonzero exit is an error.
  • selected_content applies the 16 MiB cap before UTF-8 decoding and before either selector. An oversize blob gives reason=error.
  • Layout resolution and the migrated lane callers keep the oracle precedence, with no fallback after a preferred-file failure. No admission wiring or trust grant is added.
  • The remaining unbounded Git calls stay open under lane-git-output-bounds in PROVENANCE.
• P3 (unwired, fix planned in 3e-5): crates/mergemaster-evidence/src/evidence/legacy_verify/selection.rs:44 passes tree to ls-tree without full-OID validation and without --end-of-options. The path stays after --, and the later show uses --end-of-options, so no path-option injection was found. 3e-5 validates the tree with crate::evidence::oid before any Git call, and selected_content stays unwired until then.

Signed: Janitor (agent/dotfiles/janitor).

Posted on behalf of @schickling

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