Claude Code, Skill
Codex Cursor Bridge
Local-first, two-way delegation between Codex and Cursor agents.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
packages/cli/src/demos.ts, line 104
fs.rmSync(scratch, { recursive: true, force: true }); - NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
docs/research-codex-2026-08-30.md, line 243
- I did not find the deprecation on a public changelog page I could fetch (`developers.openai.com/codex/changelog.md` → 404); the authoritative confirmation is the CLI reference qu - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.gitignore, line 24
.env - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
README.md, line 80
`curl https://cursor.com/install -fsS | bash` (Windows: - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
packages/cli/src/doctor.ts, line 232
status: process.env.CURSOR_API_KEY ? "pass" : "info",
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Concern
can delete files.
PERMISSION_DELETE_FILES
packages/cli/src/demos.ts, line 104
fs.rmSync(scratch, { recursive: true, force: true });
packages/job-store/src/store.ts, line 117
fs.rmSync(tmp, { force: true });
packages/job-store/src/store.ts, line 268
if (owner.pid === process.pid) fs.unlinkSync(lockFile);
Show more
packages/job-store/src/store.ts, line 282
fs.unlinkSync(lockFile);
packages/job-store/src/store.ts, line 384
fs.rmSync(this.jobDir(record.jobId), {
packages/test-support/src/index.ts, line 61
fs.rmSync(root, { recursive: true, force: true });
scripts/package-release.mjs, line 22
fs.rmSync(releaseDir, { recursive: true, force: true });
Install and update
Note
README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell.
INSTALL_DOCUMENTED_INSTALLER
README.md, line 80
`curl https://cursor.com/install -fsS | bash` (Windows:
docs/cursor-integration-guide.md, line 21
curl https://cursor.com/install -fsS | bash # macOS, Linux, WSL
docs/research-cursor-2026-08-30.md, line 138
curl https://cursor.com/install -fsS | bash # macOS, Linux, WSL
Show more
docs/research-cursor-2026-08-30.md, line 278
11, 2026. Binary `agent`; install via `curl https://cursor.com/install -fsS | bash`. **No official npm package** - the npm
docs/troubleshooting.md, line 39
`curl https://cursor.com/install -fsS | bash` (Windows:
packages/bridge-core/src/cursor-cli.ts, line 22
"install the official Cursor CLI: curl https://cursor.com/install -fsS | bash (Windows: irm 'https://cursor.com/install?win32=true' | iex)";
packages/cli/src/doctor.ts, line 250
: "optional: install the official CLI (curl https://cursor.com/install -fsS | bash), then `agent login`",
packages/cursor-adapter/src/acp.ts, line 101
"Cursor CLI not found on PATH (install: curl https://cursor.com/install -fsS | bash)",
plugins/codex-plans-cursor-executes/README.md, line 16
(official CLI via `curl https://cursor.com/install -fsS | bash`; binary
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
docs/research-codex-2026-08-30.md, line 243
- I did not find the deprecation on a public changelog page I could fetch (`developers.openai.com/codex/changelog.md` → 404); the authoritative confirmation is the CLI reference qu
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
packages/cli/src/doctor.ts, line 232
status: process.env.CURSOR_API_KEY ? "pass" : "info",
packages/cli/src/doctor.ts, line 233
detail: process.env.CURSOR_API_KEY ? "set (value withheld)" : "not set",
.gitignore, line 24
.env
Show more
packages/cli/src/doctor.ts, line 234
remediation: process.env.CURSOR_API_KEY
packages/cursor-adapter/src/index.ts, line 101
if (!process.env.CURSOR_API_KEY) continue;
packages/cursor-adapter/src/sdk.ts, line 47
if (!process.env.CURSOR_API_KEY) {
.gitignore, line 23
# Environment / secrets - never commit
docs/research-cursor-2026-08-30.md, line 114
- **stdio server config fields** (docs table): `type` ("stdio", required), `command` (required), `args` (array, optional), `env` (object, optional), `envFile` (path to .env, option
plugins/cursor-delegates-to-codex/skills/delegate-to-codex/references/prompt-injection.md, line 8
2. **No secret echo.** Never include API keys, tokens, or `.env` contents in a
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit 6dc091ac64e8. can delete files. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: 6dc091ac64e8b4ff2a93b270fc9d54994c713ca0
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.