Codex review, with its own probes, showed the RFC overclaimed: the
disable patch carried no name assertion despite the text crediting one,
and an id rename is not fail-loud — the skipped patch's warning needs a
logger the replay app deliberately lacks, and the resulting keyless
adapter entry fails inside its fiber without reaching the
unhandled-rejection guard (verified by a subprocess probe of the real
installFailLoud + boot composition). The overlay now asserts
name: dsh-llm-deepseek on the patch (a reused id can never disable the
wrong plugin), and the RFC records the honest residual: an id rename
degrades to config rot with replay output still correct (llm-replay
owns the stream short-circuit), plus the insert-collision last-wins
fact.
examples/acp-agent/cordis.snapshot.yml is a 26-line declarative
overlay: one entry mounts @cordisjs/plugin-include on ./cordis.yml with
patches that disable the llm-deepseek entry by id and insert
llm-replay. Every other entry is the live tree loaded through the
include, so the replay tier exercises exactly what ships and an
app-shape change lands once — the silent-drift class the hand-mirrored
125-line twin invited is structurally gone. The bin is untouched;
recording still boots cordis.yml; assertEntriesLoaded tolerates the
disabled entry by design. All snapshot scenarios pass unchanged,
byte-identical goldens included; the include applies patches at load
time only, which a one-shot replay boot is exactly.
Implements docs/rfc/implemented/testing/2026-07-04-single-source-acp-replay-config.md
(moved from proposed/ and amended); the acp-snapshot-tests and
hook-snapshot-matrix RFCs' replay-config facts are amended in the same
change.
