improve-codebase SKILL.md skillA

improve-codebase from tomzx/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add tomzx/agents/improve-codebase@git:20261007.b35fc4b

Pins git:20261007.b35fc4b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
tomzx/agents
Path
skills/improve-codebase/SKILL.md
Versions recorded
4
Latest version
git:20261007.b35fc4b, committed Oct 7, 2026
First version recorded
Aug 12, 2026
Size
18,779 bytes
Repository stars
12
License
MIT

Make a bounded set of safe, verified improvements to a codebase each run (remove dead code, add missing types, auto-fix lint, drop unused deps, patch dependencies). Designed to run weekly as a routine. Use when the user says /improve-codebase, "improve the codebase", "weekly cleanup", "tend the repo", or wants incremental hands-off improvements that pass the project's own tests and open a reviewable PR.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Improve Codebase

Makes a bounded set of **safe, verified** improvements to a codebase, then opens a single reviewable PR.
Designed to run on a weekly cadence so the codebase gets incrementally better without a large one-time refactor.

## The Core Problem This Solves

`/audit-sdlc` and `/sync-repository` tell you what is wrong.
They produce reports and issues, but the work of actually deleting the dead export, adding the missing type annotation, and running the formatter still falls to a human.
That backlog grows faster than anyone clears it.

This skill closes that gap.
Each run it scans for the same opportunities the audit skills find, picks a small batch that is safe to apply automatically, applies it, proves it is safe by running the project's own lint/typecheck/test suite, and ships it as one PR.
Over weeks, the backlog shrinks instead of grows.

## How It Differs From Related Skills

| Skill | Reads code | Writes code | Opens PR | Cadence |
|---|---|---|---|---|
| `audit-sdlc` | yes | no (report only) | no | on demand |
| `sync-repository` | yes | `.sdlc/` only, or `--fix` | no | on demand |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add tomzx/agents/improve-codebase@sha256:c0a8aa6235da8122

The line at the top of this page pins the label git:20261007.b35fc4b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xslgskcbuw2w5wm6.svg)](https://markdownregistry.com/a/art_xslgskcbuw2w5wm6)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Aug 12, 2026 and Oct 7, 2026, about one every 18 days.

versioncommittedcommitsizeaudit
git:20261007.b35fc4b latest2026-10-07 b35fc4b 18,779 BA view · diff
git:20261004.00bb0c52026-10-04 00bb0c5 18,750 BA view · diff
git:20260813.f1273ae2026-08-13 f1273ae 18,704 BA view · diff
git:20260812.3b7151c2026-08-12 3b7151c 18,711 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (18779 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

tomzx/agents · 12 stars · license MIT · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xslgskcbuw2w5wm6
GET https://markdownregistry.com/api/v1/resolve?ref=tomzx/agents/improve-codebase
GET https://markdownregistry.com/api/v1/blob/c0a8aa6235da81222d192d84fa2e2fa07d9f44c2ecfbe7d68b496d0bfd015ccc

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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