agentmods.dev

tokenjam: Instructions file for Codex

AGENTS.md

tokenjam AGENTS.md is an instructions file for Codex, OpenCode from Metabuilder-Labs/tokenjam. It costs 260 tokens per session, scanned A, original, MIT.

Repository instructions for coding agents that explains which project guide to follow and lists essential rules for storage, configuration, architecture, tracing, output, and tests.

In plain words
What is it for?
Use it when an agent works on the TokenJam codebase and needs the project's current development rules.
Why use it?
It prevents agents from using the wrong database, file format, imports, tracing setup, or test helpers.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions AGENTS.md; mentions Codex.

This is Metabuilder-Labs/tokenjam's own configuration. It tells Codex and OpenCode how to work on tokenjam 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 tokenjam configures →

not rated 125repo +1 5d ago A scan 260 tokens original MIT
View source ↗ Metabuilder-Labs/tokenjam tokenjam.dev
Reuse

Borrowing it

Nothing to install: this file belongs to Metabuilder-Labs/tokenjam. 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/Metabuilder-Labs/tokenjam/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Metabuilder-Labs/tokenjam

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.

agentmods badge for tokenjam AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/metabuilder-labs/tokenjam/agents-md"><img src="https://agentmods.dev/badge/instructions/metabuilder-labs/tokenjam/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tokenjam AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/metabuilder-labs/tokenjam/agents-md"><img src="https://agentmods.dev/badge/instructions/metabuilder-labs/tokenjam/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 260 This file is loaded in full into every session.
When invoked 260 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 $0.00260 $0.00260
Opus 5.5 $0.00104 $0.00104
Sonnet 5.5 $0.00052 $0.00052
Haiku 4.5 $0.00026 $0.00026

Measured 2mo ago against content hash 1c6e25239659, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tokenjam 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 2mo 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.

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 · 17 lines

What it actually says

AGENTS.md — TokenJam

AI coding agents working in this repo should read CLAUDE.md instead. CLAUDE.md is the maintained source of truth and is kept up to date by the agents working in this codebase. This file exists only for tools that look specifically for AGENTS.md (Codex, Gemini Code, etc.).

Quick rules for agents that don't read CLAUDE.md

  1. Storage is DuckDB — never import sqlite3, never write SQLite queries
  2. Config is TOML — tomllib.load() requires open(path, "rb") binary mode
  3. tokenjam/core/ has no CLI or HTTP imports — pure domain logic only
  4. @watch() alone does not create LLM spans — requires patch_anthropic() etc.
  5. Never use unicode bullet characters in output — Rich handles formatting
  6. Tests use InMemoryBackend and tests/factories.py — never construct NormalizedSpan directly

Read CLAUDE.md for the full architecture, development guide, and current rules.

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. 2mo ago First seen · 17 lines · 260 tokens per session scan A 1c6e25239659

Subscribe to this mod's changes

tokenjam AGENTS.md is an instructions file published in the GitHub repository Metabuilder-Labs/tokenjam (125 stars, last pushed 5d ago), licensed MIT. It adds 260 tokens to every session, about $0.0010 per session on Opus 5.5. 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 2026-08-30.

Autonomous AgentsLLMai-agentscliduckdbobservability
Related

tokenjam AGENTS.md compared with instructions from other repositories

tokenjam AGENTS.md next to 6 instructions from other repositories
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tokenjam AGENTS.mdMetabuilder-Labs/tokenjamInstructions file1255d agoMITA260Codex, OpenCode
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode