nopeek
Secret-safe Claude Code sessions via nopeek CLI. Use when user asks about secrets, .env loading, credential safety, or keeping API keys out of conversation context.
What this skill does
# nopeek — Secret Safety for Claude Code Secure proxy between Claude Code and your secrets. Claude knows key names, never key values. ## Why Every Bash tool output is sent to Anthropic's API and retained 30+ days. If a CLI prints a token, that token is stored on Anthropic's servers. nopeek prevents this. ## Quick Start All nopeek commands are safe inside Claude Code — they never output secret values, only key names. ### 1. Scan and migrate CLIs ```bash npx nopeek init ``` Detects installed cloud CLIs (aws, hcloud, kubectl, etc.), checks their auth config, and migrates to profile-based auth where needed. ### 2. Load .env secrets ```bash npx nopeek load .env npx nopeek load .env --only DATABASE_URL,API_KEY ``` Injects values into the session via `CLAUDE_ENV_FILE` (when available) or outputs a source command. Only key names appear in output — never values. ### 3. Store arbitrary keys ```bash npx nopeek set MY_API_KEY --from-env npx nopeek set STRIPE_KEY --value "sk_live_..." ``` Stored keys auto-load on every Claude Code session via the SessionStart hook. ### 4. Verify ```bash npx nopeek status npx nopeek list ``` ## What the hooks do | Hook | Event | Purpose | |------|-------|---------| | session-load.sh | SessionStart | Loads stored keys + CLI profiles into `CLAUDE_ENV_FILE` | | redact-output.sh | PreToolUse(Bash) | Wraps cloud CLI output through secret pattern redaction | ## Limitations - **Redaction is best-effort.** Regex patterns catch known formats (AWS keys, bearer tokens, Stripe keys, private key headers, connection strings) but cannot catch every possible secret. - **This is a safety net, not a guarantee.** The primary defense is loading secrets via `CLAUDE_ENV_FILE` so they never appear in output at all. - **No PostToolUse output redaction.** Claude Code doesn't support modifying Bash output after execution. The PreToolUse hook rewrites commands to filter output before Claude sees it. - **Commands with pipes or redirections are not wrapped.** The redaction hook skips commands containing `|`, `>`, or `<` to avoid breaking complex command semantics. - **Requires jq.** The redact hook will not fire without jq installed. - **Waiting on anthropics/claude-code#39882** — PreApiCall/PostApiCall hooks would enable full payload redaction before data leaves your machine. ## Audit .env files ```bash npx nopeek audit ``` Scans current directory for .env files containing secrets and checks .gitignore coverage. ## Troubleshooting **Keys not loading on session start:** - Check `npx nopeek status` — are keys stored? - Verify the plugin is installed: `/plugin list` - Try `/reload-plugins` **Cloud CLI still showing secrets:** - The redaction hook only fires for commands starting with known CLI names (aws, hcloud, kubectl, doctl, gcloud, az, terraform) - Commands with pipes or redirections are skipped to avoid breaking semantics - Run `npx nopeek load .env` to make secrets available as env vars, then use `$VAR_NAME` in commands
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