Two calibration/coverage fixes in the redaction guard:
- env.kv's zero-or-more-prefix regex fired on ANY identifier ending in a
credential suffix, so ordinary code (cacheKey:, sortKey:, partitionKey:,
hotkey:, even monkey:) with an 8+-char entropic value hit a MEDIUM confirm
prompt — a gate that cries wolf gets ignored. A name now only counts when
its shape is credential-semantic: suffix separated by _/-/. (api_key,
x-access-key, AUTH.TOKEN), a bare suffix (key:, token:), ALL-CAPS env style
(APIKEY=, MY_APIKEY=), or a camel compound with a credential prefix
(apiKey, authToken, clientSecret). The value stays capture group 1, so the
shape check lives in validate (isCredentialShapedEnvName), not the regex.
- gstack-redact-prepush's narrowing excluded commits reachable from ANY
remote (`--not --remotes`), so a secret that had only ever reached a
private/local-path remote was never scanned when later pushed to a PUBLIC
remote. The exclusion is now scoped to the push target
(`--remotes=<name>/*`) via the remote name git hands pre-push as $1 (the
installed wrapper already forwards "$@"); stdin/CLI invocations and URL
pushes without a configured name fall back to the historical all-remotes
behavior. #2592's catch-up-merge fix is unaffected: upstream commits come
from the same remote being pushed to.
New coverage: env.kv negative controls (cacheKey/sortKey/partitionKey/
hotkey/monkey/idempotencyKey) + positive controls for all four name shapes;
end-to-end hook tests proving a second-remote secret blocks a push to origin
while origin-published catch-up content still doesn't, plus both fallbacks.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
