dependency-audit: report vulnerable and outdated dependencies

# Dependency audit Scan the dependency graph for **known vulnerabilities** and **outdated packages**, then hand back one prioritized report. **Read-only**: run audit tools, never modify manifests, lockfiles, or code — the teammate (or `/dev-flow`) applies fixes. ## Procedure 1. **Detect ecosystems.** Glob for manifests — `package.json`, `pnpm-lock.yaml`/`yarn.lock`, `go.mod`, `requirements.txt`/`pyproject.toml`, `Cargo.toml`. Report which were found; audit only those. 2. **Run each ecosystem's native tools once** — the exact audit + outdated commands, their `jq` extraction filters, and install hints are in [references/ecosystems.md](references/ecosystems.md). Prefer the tool the lockfile implies (`pnpm` over `npm` when `pnpm-lock.yaml` exists, etc.). 3. **Missing tool = "not run", never a silent pass.** If an audit tool isn't installed, list it under *Tools not run* with the one-line install from the reference; do not infer results from the manifest. 4. **Synthesize** the outputs into the report below. Then stop — propose, don't apply. ## Token discipline (required) - **Never** paste raw `audit`/`outdated` JSON into the conversation. Always pipe it through the `jq` filter in the reference to keep only `{package, severity, id, installed, fixed, path}`, then work from that. - Run each tool **once**; capture the filtered summary and discard the raw output. - Read manifests with `grep`/targeted reads, never whole large lockfiles. - Load `references/ecosystems.md` only when you need a command you don't already have. ## Output Report, most severe first: - **Summary:** `N vulnerabilities (c critical / h high / m moderate / l low), M outdated` across the ecosystems scanned. - **Vulnerabilities** — table: `severity · package · installed → fixed · advisory/CVE · dependency path`. - **Outdated** — table: `package · current → latest · jump (patch / minor / major)`. - **Prioritized remediation:** 1. **Safe now** — patch/minor upgrades that fix a vuln or are low-risk, each with the **exact command**. 2. **Needs review** — major/breaking upgrades, flagged separately with why (API break, transitive pin). - **Tools not run** — any ecosystem whose audit tool was missing, with the install hint. State clearly that nothing was changed. If the teammate wants the fixes applied, recommend running them through `/dev-flow` (or manually) — this skill does not upgrade. ## Guardrails - Read-only: no `Edit`/`Write`, no `npm install`/upgrade, no lockfile changes. - Report severities and versions **as the tools report them** — do not guess CVE IDs or fixed versions. - If a scanned ecosystem has zero findings, say so explicitly rather than omitting it.