code-theory SKILL.md skillB
code-theory from philoserf/claude-code-config is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add philoserf/claude-code-config/code-theory@git:20261007.7b42d5bPins git:20261007.7b42d5b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- philoserf/claude-code-config
- Path
skills/code-theory/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261007.7b42d5b, committed Oct 7, 2026
- First version recorded
- Sep 13, 2026
- Size
- 7,275 bytes
- Repository stars
- 13
- License
- MIT
Builds a Naur-style theory of a codebase — the understanding needed to change it without damaging its conceptual integrity. Use when inheriting an unfamiliar system, capturing design rationale, or recovering lost design intent. Writes `THEORY.md` plus any drift and contradictions it finds to `.issues/`.
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
Build and express a theory of this codebase in the sense Peter Naur meant in "Programming as Theory Building": not a summary of what files exist, but an account of the understanding a competent maintainer would need to hold in mind to modify this system without damaging its conceptual integrity. Scope the investigation to `$ARGUMENTS` if provided, otherwise treat the whole repository as in scope. Examples: `the scheduler`, `src/billing/`, `the plugin system`. Skip vendored dependencies, build output, generated code, and lockfiles (`node_modules/`, `dist/`, `vendor/`, `*.min.js`, `go.sum`). ## Phase one — investigation Read widely before you read deeply. 1. **Orient.** Entry points, build configuration, top-level module structure. Enough to know what runs and in what order. 2. **Follow the grain.** Trace a few representative flows end-to-end. A flow you can follow from input to durable effect teaches more than ten files skimmed. 3. **Read the tests.** They record which behaviors the authors considered load-bearing. A behavior with an exhaustive test suite and a behavior with none are telling you different things. …
Read the whole file at its exact version.
How to install
mdr add philoserf/claude-code-config/code-theory@sha256:fc857c67f8c6c4a8The line at the top of this page pins the label git:20261007.7b42d5b, 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.
[](https://markdownregistry.com/a/art_ea23cvnq2myu4uya)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 13, 2026 and Oct 7, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.7b42d5b latest | 2026-10-07 | 7b42d5b | 7,275 B | B | view · diff |
| git:20260925.85a362c | 2026-09-25 | 85a362c | 7,210 B | B | view · diff |
| git:20260925.b906bd9 | 2026-09-25 | b906bd9 | 7,188 B | B | view · diff |
| git:20260913.f2c2f15 | 2026-09-13 | f2c2f15 | 7,238 B | B | view · diff |
| git:20260913.96228ea | 2026-09-13 | 96228ea | 7,294 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a name
- pass: Frontmatter block present
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7275 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
philoserf/claude-code-config · 13 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ea23cvnq2myu4uya GET https://markdownregistry.com/api/v1/resolve?ref=philoserf/claude-code-config/code-theory GET https://markdownregistry.com/api/v1/blob/fc857c67f8c6c4a833a443d2dcfbfda56aa73e9e4af37e62440a84bbdf924a1e
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.