The decision [dcn-2609250000000027](../../decisions/dcn-2609250000000027-the-pre-commit-guard-s-sources-refresh.md) for the sources refresh says the opt-in shape decides none of iss-2609250834251447's questions, but the template does take a provisional stance for the pre-commit refresh (opt-in; fail open on an unusable opt-in); the entry should call that half provisional (review2-sources 5).

Frontmatter

.abcd/work/issues/resolved/iss-2609252055533837-the-decisions-entry-for-the-sources.md
open on GitHub ↗ · commit history ↗

mentions3

• dcn-26092500000000272026-09-25 — The pre-commit guard's sources refresh (itd-76) finds its binary two ways until the product thinker rules on iss-2609250834251447, and the ruling may widen the second (finding 1 of the sources-lane review, adopted by the orchestrator as the safe shape). This repository's copy builds `./cmd/abcd` from the checkout, as `.githooks/commit-msg` does, and never runs an installed abcd; a tree that does not build is one warning line and the commit proceeds. The copy `abcd ahoy` scaffolds refreshes only when the clone opts in with `git config --local abcd.sourcesBinary <absolute path>`, a path to an executable regular file with no PATH search and never an environment variable, and otherwise prints one line and proceeds. That answers none of the three questions the ruling holds (how a scaffolded hook finds abcd, fail open or closed, default or opt-in): it is the shape that leaves them open, so AC3 holds in this repository and in a managed repository that opted in. In both copies the refresh updates an existing keyed private store only, relays the binary's own line, and names a legacy store's migration once per working tree (implementer of the sources fix round).
• dcn-26092900000000012026-09-29 — Correction to the 2026-09-25 entry on the pre-commit guard's sources refresh (itd-76, iss-2609250834251447): that entry says the scaffolded copy's opt-in shape "answers none of the three questions the ruling holds", and half of that is not so. The template `abcd ahoy` scaffolds (`internal/core/ahoy/defaults/pre-commit`) takes a PROVISIONAL stance on two of the three questions: default or opt-in — opt-in, since nothing runs until the clone sets `abcd.sourcesBinary`; fail open or closed — open, since an unusable opt-in (not an absolute path to an executable regular file) prints one line and the commit proceeds. Only the first question, how a scaffolded hook finds abcd, stays unanswered in the template's own terms, which say it "deliberately does not take" that decision. Both provisional answers stand until the product thinker rules on iss-2609250834251447, and the ruling may replace either. The earlier entry stands as written, since the ledger is append-only (review2-sources finding 5; recorded by lane drainDrift2 of autonomous run A, iss-2609252055533837).
• iss-2609250834251447A managed repository still has no local gate on a commit message carrying a live agent-session URL or a tool attribution footer, and nothing guards the text handed to the forge CLI for a pull request, an issue or a comment. abcd's own repository refuses both shapes in a commit message through its committed commit-msg hook, which runs go run ./cmd/abcd lint outbound from the source checkout; a managed repository has no source checkout, so the scaffolded form of that hook needs three product decisions first: how it finds an abcd binary (a git hook has no plugin root, so only the PATH rung survives), whether it fails closed or open when none is found, and whether abcd ahoy installs it by default or on opt-in. Split out of iss-2609061438431625 when its local half landed for this repository.