Agent SDK 0.2.113 dropped vendor/ripgrep and now ships native binaries
via per-platform optionalDependencies. Two breakages:
- action.yml chmod'd vendor/ripgrep which no longer exists, failing the
Install Dependencies step with find exit 1.
- The SDK auto-resolves its bundled binary by trying the -musl platform
package before the glibc one. bun install does not respect the
package.json libc field and installs both on glibc Linux, so the SDK
picks the musl binary and spawn fails with ENOENT.
Remove the obsolete ripgrep chmod. Make installClaudeCode() return the
install.sh binary path and pass it explicitly as
pathToClaudeCodeExecutable so the SDK skips auto-resolution entirely.
dirname() preserves embedded newlines, so a value like
`/usr/bin/claude\n/attacker/path` writes two lines to GITHUB_PATH,
injecting an attacker-controlled directory into PATH for all subsequent
workflow steps.
Validate the input immediately after reading it and throw if it
contains any control characters (0x00-0x1f, 0x7f). This is fail-closed
rather than silent stripping — a path with control characters is always
misconfigured or malicious.
Fixes#1160
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: fall back to repo default_branch instead of hardcoded "main"
When no explicit base_branch input is provided, the action previously
fell back to a hardcoded "main", which fails on repositories whose
default branch is named differently (e.g. "master", "develop").
This reads repository.default_branch from the GitHub event payload
(populated once in parseGitHubContext) and uses it as the fallback in
all three callsites: agent/index.ts, run.ts, and update-comment-link.ts.
Explicit env/input precedence is preserved; "main" remains only as a
last-resort defensive fallback if the payload somehow lacks the field.
* test: drop unused BASE_BRANCH env handling from default_branch test
agent/index.ts no longer reads process.env.BASE_BRANCH directly (it now
goes through context.inputs.baseBranch which is set on the mock context),
so saving/clearing/restoring that env var in the regression test is dead
code.
* Revert "chore: bump Claude Code to 2.1.89 and Agent SDK to 0.2.89"
This reverts commit bee87b3258c251f9279e5371b0cc3660f37f3f77.
* Revert "chore: bump Claude Code to 2.1.88 and Agent SDK to 0.2.88"
This reverts commit 7225f045c6219dd201504adc5534baf31024db31.
