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AGENTS.md@shrinkA

AGENTS.md@shrink from juliusbrussee/caveman is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned

mdr add juliusbrussee/caveman/shrink/AGENTS.md@git:20260924.921eab8

Pins git:20260924.921eab8 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 14 of 14 checks passed
Kind: AGENTS.md file
Repository: juliusbrussee/caveman
Path: shrink/AGENTS.md
Versions recorded: 3
Latest version: git:20260924.921eab8, committed Sep 24, 2026
First version recorded: Aug 11, 2026
Size: 3,429 bytes
Repository stars: 118,366
License: Apache-2.0

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

# shrink — caveman-shrink, the tool-catalog compressor (Go core + launcher, Apache-2.0)

Compress MCP/OpenAI **tool definitions** before they fill the context window. A thin Go wrapper
over the [engine](../engine/CLAUDE.md)'s `toolschema` compressor: it drops annotation metadata
(examples, titles, `$comment`, `$schema`) and reduces long descriptions to their lead plus every
constraint-bearing sentence. It keeps every **selection token** (tool/parameter names, types,
enums, required) and argument-construction value (`default`, `const`, `$ref` targets)
byte-for-byte. Everything is `inferred`.

## Layout
- `shrink.go` — the library: `Shrink` (catalog → compressed, fail-open S4 transform, durable-CCR-backed), `Recover` (handle → original bytes), `Lint` (per-tool inferred token reductions), `SelectionProfile` (the structural surface — what must survive). `WithStore`/`WithStorePath` select recovery storage; default is `CAVEMAN_CCR_DB` / `~/.caveman/ccr.db`.
- `cmd/caveman-shrink/` — the CLI: `caveman-shrink` / `shrink` (stdin→stdout), `lint <file>`, and `recover <handle>`.
- `bin/caveman-shrink.mjs` + `package.json` — the `npx caveman-shrink` launcher around the prebuilt binary.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add juliusbrussee/caveman/shrink/AGENTS.md@sha256:9591be056cad62d5

The line at the top of this page pins the label git:20260924.921eab8, 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](https://markdownregistry.com/badge/art_jk6pczxptmco2qn7.svg)](https://markdownregistry.com/a/art_jk6pczxptmco2qn7)

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

Versions

The registry has recorded 3 versions of this file, between Aug 11, 2026 and Sep 24, 2026, about one every 22 days.

version	committed	commit	size	audit
git:20260924.921eab8 latest	2026-09-24	921eab8	3,429 B	A	view · diff
git:20260812.d4ef06b	2026-08-12	d4ef06b	3,432 B	A	view · diff
git:20260811.82864c8	2026-08-11	82864c8	3,516 B	A	view

Audit of the latest version

A 14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Size between 200 bytes and 200 KB (3429 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

juliusbrussee/caveman · 118,366 stars · license Apache-2.0 · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jk6pczxptmco2qn7
GET https://markdownregistry.com/api/v1/resolve?ref=juliusbrussee/caveman/shrink/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/9591be056cad62d5bd0d6956e139c5bfa544c239003f04a494121786dacf8994

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: how to write a good AGENTS.md · AGENTS.md vs CLAUDE.md · which agent file does what.