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How to find deepening opportunities in an aging codebase with Skills

Scan a repo for modules to deepen, review an HTML report, then grill through one pick.

Who it is forA developer maintaining a tangled codebase that agents have been speeding up into more complexity.

The problemAgent-driven coding accelerates software entropy, so the design drifts faster than anyone reviews it.

The outcomeA visual HTML report of candidate deepening opportunities and a grilled plan for the one you choose.

What you need first

  • A coding agent that supports the plugin or skills install route, such as Claude Code or Codex
  • A project repository the agent can read and edit
  • Optional: an issue tracker such as GitHub or GitLab, or a local folder for tickets

Steps

  1. Install the plugin in Claude Code with claude plugin install mattpocock-skills@claude-plugins-official.
  2. Run /improve-codebase-architecture on your repo.
  3. Open the HTML report and pick one candidate.
  4. Let the agent grill you through the chosen candidate before it changes any code.

Prompt for your agent

In the mattpocock/skills repo, run improve-codebase-architecture on <repo path>. Expected output: an HTML report of deepening candidates, then a grilling session on the one I pick. Verify that the report lists concrete modules rather than general advice.

Caveat. This is a survey, not a rescue: on a genuinely old codebase it finds real candidates but will not untangle the mud for you.

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