rullama-framework: Instructions file for Codex

AGENTS.md

rullama-framework AGENTS.md is an instructions file for Codex, OpenCode from Brainwires/rullama-framework. It costs 1,809 tokens per session, scanned A, original, Apache-2.0.

Project instructions for the rullama-framework codebase, covering its Rust workspace, Deno and TypeScript packages, layout, commands, and architecture.

In plain words
What is it for?
Use them when modifying or reviewing rullama-framework, a codebase that combines Rust crates with Deno packages.
Why use it?
They give a coding agent the project-specific context needed to work in the right directories and follow local rules.

Instructions file for CodexOpenCode

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

This is Brainwires/rullama-framework's own configuration. It tells Codex and OpenCode how to work on rullama-framework 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 rullama-framework configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Brainwires/rullama-framework. 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/Brainwires/rullama-framework/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Brainwires/rullama-framework

Made for: Codex, OpenCode.

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Per session 1,809 This file is loaded in full into every session.
When invoked 1,809 The same file — it is already loaded in full.
Security scan A 0 findings. 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 $0.01809 $0.01809
Opus 5 $0.00905 $0.00905
Sonnet 5 $0.00362 $0.00362
Haiku 4.5 $0.00181 $0.00181

Measured yesterday against content hash aaaeca0f5a5c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-15, from the pricing page.

Security

Grade A, and why

rullama-framework AGENTS.md scanned grade A with 0 findings 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file gives coding agents project-specific context. Keep it short and update it when workflows change.

Project Overview

  • Primary app or package: the rullama Rust workspace (crates/) and its Deno/TypeScript port under deno/ — 27 JSR packages published as @rullama/* (deno/packages/*).
  • Main entry points: each deno/packages/<name>/mod.ts (plus the subpath exports in that package's deno.json); Rust crates under crates/<name>/src/lib.rs.
  • Important directories: deno/packages (the published packages), deno/tests (cross-package integration tests), deno/examples (deno run samples), deno/docs, deno/fixtures (Rust↔Deno wire goldens), crates/ (Rust).

Architecture Notes

  • Module boundaries: @rullama/core is the zero-dependency type layer; every other package depends on it and never on a sibling except as declared in deno/README.md's dependency diagram. Sibling imports use the bare @rullama/<name> specifier and resolve to the local workspace member.
  • Generated or vendored code: none in deno/; deno/fixtures/*.json are goldens read as text.
  • Sensitive areas: deno/packages/tool-builtins (bash/file/git/web execution), deno/packages/permission (policy enforcement), deno/packages/provider (API keys, request signing), deno/packages/mcp-server and a2a (inbound protocol handling).

Commands (Deno, run from deno/)

  • Install: nothing to install — deno resolves the import map; fallow must be on PATH (npm i -g fallow or cargo install fallow-cli).
  • Build: no build step (JSR publishes TypeScript sources).
  • Test: deno task test (packages/ + tests/); one package: deno test -A packages/<name>/.
  • Typecheck or lint: deno task check = fmt --check + lint + type-check (packages, tests, examples) + deno task doc-lint (JSDoc on every export of the 74 published entrypoints)
    • tests — what CI runs; deno task check:fix auto-fixes formatting and fixable lint.
  • Publishing (like denext, one package per tag): bump the changed package's deno.json version, commit, then cd deno && deno task publish:changes --push — it finds the packages whose version is not on JSR, tags them <package>-v<version> in dependency order and waits for each publish-deno.yml run (OIDC provenance). Without --push it only reports; --bump patch bumps packages that changed without a bump. deno/scripts/publish.sh [--package <name>] is the manual fallback. deno task jsr:scores refreshes deno/docs/jsr-scores.md.
  • Coverage for fallow's CRAP score: deno task coverage:fallow (writes deno/coverage/coverage-final.json, which the pre-commit hook passes to fallow audit).

Read the full file on GitHub · 108 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. yesterday First seen · 108 lines · 1,809 tokens per session scan A aaaeca0f5a5c

Subscribe to this mod's changes

rullama-framework AGENTS.md is an instructions file published in the GitHub repository Brainwires/rullama-framework (20 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,809 tokens to every session, about $0.0090 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-15.

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