radin: Instructions file for Codex

AGENTS.md

radin AGENTS.md is an instructions file for Codex, OpenCode from shortcuts/radin. It costs 3,472 tokens per session, scanned A, original, MIT.

Reference instructions for radin, a bash-based Claude Code plugin that provides backlog planning, execution, review, and installation of companion tools.

In plain words
What is it for?
Use them when changing or maintaining radin's scripts, backlog-driven agent workflow, installer, or integrations with tools such as rtk and code-review-graph.
Why use it?
They give an agent the project's operating rules, including supported systems, installation methods, file contracts, and development workflow.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is shortcuts/radin's own configuration. It tells Codex and OpenCode how to work on radin itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything radin configures →

Reuse

Borrowing it

Nothing to install: this file belongs to shortcuts/radin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/shortcuts/radin/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/shortcuts/radin

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

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README.md
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Your own site
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Per session 3,472 This file is loaded in full into every session.
When invoked 3,472 The same file — it is already loaded in full.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.03472 $0.03472
Opus 5.5 $0.01389 $0.01389
Sonnet 5.5 $0.00694 $0.00694
Haiku 4.5 $0.00347 $0.00347

Measured 2d ago against content hash 337435c5cd79, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

radin AGENTS.md scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- **Companion install is advisory.** A failed install prints a warning and the run continues. The installer asks one question: which package manager installs the companions (`brew`, `mise`, or `curl`). radin adds no pack
AGENTS.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

radin Agent Reference

radin is a Claude Code plugin of skills, a CLI, and install glue.

Hard rules

  • bash 3.2 (macOS ships it). Use no associative arrays, mapfile, or ${var,,}. Add no uname branch. Resolve tools with command -v or brew shellenv. Branch only where a tool differs (md5 versus md5sum). Call out every script edit.

  • ~/.claude is not ours. install.sh runs cp only on radin's own named files, plus mkdir -p. It never runs rm, deletes with a wildcard, or overwrites a file radin does not ship. Five exceptions:

    1. The <!-- radin:begin -->…<!-- radin:end --> block in ~/.claude/CLAUDE.md.
    2. The lib/radin-cbm-config.sh snapshot and restore of settings.json and ~/.claude.json.
    3. skills/unslop/SKILL.md and skills/technical-writing/SKILL.md. install.sh fetches both from upstream and overwrites them only when manifest.json lists them as radin's own.
    4. skills/radin-execute, skills/radin-implement and skills/radin-run, renamed to radin-batch and radin-do. install.sh removes one only when its SKILL.md still has radin's own name: line.
    5. skills/thermo-nuclear. install.sh removes it only when the fresh thermo-nuclear-code-quality-review copy is ready. tests/bash-compat.bats pins that one rm.

    Call out every install.sh edit.

  • Companion install is advisory. A failed install prints a warning and the run continues. The installer asks one question: which package manager installs the companions (brew, mise, or curl). radin adds no package manager the user has not already run.

Rule enforcers

Rule Enforcer Gap
bash 3.2 tests/bash-compat.bats Grep only; no 3.2 interpreter run.
~/.claude ownership tests/install.bats ("never overwrites a skill radin did not install"), tests/bash-compat.bats (rm allowlist), SHIPPED (install copies and uninstall removes only listed names) Foreign content in the CLAUDE.md block and settings restore is untested.
One list of shipped files scripts/shipped.sh check, run by make check README row text is hand-written.
Companion install is advisory tests/install.bats ("a failing companion tool...") None.
One owner per delegation tests/skill-names.bats (every name resolves) Nothing for "one file per delegation" and graph tool names; review only.
One owner per prose rule LEAF_CONTRACT, EXPLORE_RULE and OPEN_DECISIONS_RULE tokens, scripts/check-prose.sh (new verbatim sentence copy) A paraphrase or contradiction; review only.
Name each companion directly, no guard or escape clause scripts/check-prose.sh guard phrases A paraphrase escapes the phrase list.
A test must be able to fail scripts/check-prose.sh bare ! cmd lint Other vacuous patterns; review only.
Same checks locally and in CI make check and make test in .github/workflows/ci.yml Linux run unverified.
Deterministic work lives in the CLI None Review only.
Lifecycle diagrams match the skills and the run loop None; make diagrams regenerates the SVGs Review only.
Critical-path-only tests (policy) None; review only A new test that guards no install or TUI failure passes unnoticed.

Read the full file on GitHub · 144 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago Changed · +14 tokens per session 337435c5cd79
  2. 4d ago Changed · +3 lines · +183 tokens per session 0780ddb31c5a
  3. 8d ago Changed · +40 lines · -12 tokens per session 9573c43ca77b
  4. 10d ago Changed · -52 lines · +1,053 tokens per session 345191a07a2d
  5. 12d ago Changed · +13 lines · +201 tokens per session 7b86f6afdd58
  6. 27d ago Changed · +2 lines · +27 tokens per session 092e3f727a53
  7. 29d ago Changed · +1 lines · +39 tokens per session 1cf84956ba25
  8. 1mo ago Changed · -4 tokens per session 5c7831709d6d
  9. 1mo ago Changed · +8 tokens per session c819e587c6b6
  10. 1mo ago First seen · 137 lines · 1,963 tokens per session scan A c20c5d9fc5cb

Subscribe to this mod's changes

radin AGENTS.md is an instructions file published in the GitHub repository shortcuts/radin (6 stars, last pushed yesterday), licensed MIT. It adds 3,472 tokens to every session, about $0.0139 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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