📦 Safe Dependency Updater

The problem

Dependabot is great until you have 40 open update PRs nobody reviews. Security patches pile up. Bigger version bumps scare people who don't know if the breaking change matters. The result is a stale dependency tree — exactly what security teams warn against.

The outcome

Every Dependabot PR gets auto-reviewed: runs tests, checks the changelog, assesses risk. Patch updates with green tests and no breaking changes → auto-merge. Minor updates → bot comments 'looks safe, awaiting human sign-off'. Major updates → bot reads the migration guide and flags specific concerns.

Why IronClaw

An agent that can merge to main needs strict limits, and the limits that matter live outside the agent: a token scoped to one repo and branch protection that requires human review for anything but patch updates. IronClaw adds a sandbox with per-tool host allowlists and keeps credentials out of the tools, which suits unattended work.

Alternatives worth considering

• OpenClaw — Fine for solo projects where the blast radius is small
• Hermes — If you want the agent to also proactively propose upgrades beyond what Dependabot generates

Setup steps

1. Step 1: Define risk tiers

   Patch (no breaking changes) / Minor (new features, deprecations) / Major (breaking). Auto-merge rules apply only to patch + all tests green + no security advisories in other direction. Everything else needs a human.

2. Step 2: Wire up CI and the agent

   When Dependabot opens a PR, let CI run, then trigger the agent from CI once checks finish. It reads the changelog diff and posts an assessment, and nothing merges until CI is green and the assessment says risk is low.

3. Step 3: Implement the changelog reader

   The model fetches the dependency's changelog between current and target version. Summarizes breaking changes, deprecations, and notable features. This is where you get real value.

4. Step 4: Add the weekly staleness report

   Every Monday, post 'dependencies > 3 months behind' and 'security advisories unaddressed > 7 days'. Visibility changes behavior.

Example prompt

Review this Dependabot PR. Classify: patch/minor/major. Fetch the dependency's changelog between versions. Summarize breaking changes, deprecations, security-relevant changes. Output a risk score (low/medium/high) and a recommend action (auto-merge / human review / block).

Pitfalls to avoid

• Auto-merging major versions. Never, even if tests pass. Major versions can have subtle runtime behavior changes that your test suite doesn't exercise.
• Trusting CI blindly. If test coverage is thin, green CI means little. The bot should not auto-merge if coverage of changed code paths is below your threshold.
• Bypassing security reviews. Packages with recent CVEs need a human look even on patch updates. Make the CVE check a hard stop.

Cost breakdown (monthly)

Cost: Model usage plus CI minutes. Model rates change often; check the model pricing table or the cost calculator for current figures.

Related guides

• Skill allowlisting
• Security architecture
• Model API pricing