Borrowing it
Nothing to install: this file belongs to Brian-Egan/jazz_agent. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Brian-Egan/jazz_agent/main/AGENTS.mdgit clone --depth 1 https://github.com/Brian-Egan/jazz_agentWrote 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.
[](https://agentmods.dev/instructions/brian-egan/jazz_agent/agents-md)<a href="https://agentmods.dev/instructions/brian-egan/jazz_agent/agents-md"><img src="https://agentmods.dev/badge/instructions/brian-egan/jazz_agent/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.
<a href="https://agentmods.dev/instructions/brian-egan/jazz_agent/agents-md"><img src="https://agentmods.dev/badge/instructions/brian-egan/jazz_agent/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02545 | $0.02545 |
| Opus 5.5 | $0.01018 | $0.01018 |
| Sonnet 5.5 | $0.00509 | $0.00509 |
| Haiku 4.5 | $0.00254 | $0.00254 |
Grade A, and why
jazz_agent 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Instructions for the coding agent implementing this repository.
This file is for the implementer. The runtime contract for the Claude Project that
queries the finished system is a different document:
docs/claude-project-instructions.md. Do not
conflate them.
Read first
docs/ARCHITECTURE.md— the specification. Issues reference it by section.docs/DECISIONS.md— why things are the way they are.docs/DATA_MODEL.md— schema and the queries it exists to serve.docs/DC.md— DC issues (anything citing "DC §n", CapitalBop, rolling playlists, or venue groups). Extends ARCHITECTURE.md; matching and failure isolation still come from there.
docs/original-prd.md is the original PRD, kept
verbatim. It is superseded in several places. Where the PRD and ARCHITECTURE.md disagree,
ARCHITECTURE.md wins and the relevant ADR names the superseded section. Do not implement
from the PRD directly.
How to pick up work
gh issue list --state open --milestone dc
Milestone v1 (NYC) is complete. dc implements docs/DC.md.
Take the lowest-numbered issue whose Blocked by dependencies are all closed. Do not
start a blocked issue. If everything open is blocked, say so rather than guessing at
scaffolding.
One issue per branch, one commit series per issue, reference the issue in the commit message so it closes on merge. Do not batch multiple issues into one change.
If an issue's acceptance criteria turn out to be wrong or impossible, say so on the issue and stop. Do not silently redefine the work.
Invariants
These are not style preferences. Breaking any of them breaks a decision recorded in an ADR.
1. core/ and ports/ must never import adapters/
core/ is pure domain logic and performs no I/O. ports/ holds Protocols only. This is
what makes the system portable per PRD 8.6, and it is enforced by an import-linter
contract in CI. If you find yourself wanting an HTTP call inside core/, the logic belongs
in pipeline/ and the data should be passed in.
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.
- 1mo ago Changed · +32 lines · +566 tokens per session 6d0d65305db1
- 2mo ago First seen · 189 lines · 1,979 tokens per session scan A 5b645c30b18e
jazz_agent AGENTS.md is an instructions file published in the GitHub repository Brian-Egan/jazz_agent (0 stars, last pushed 27d ago), licensed MIT. It adds 2,545 tokens to every session, about $0.0102 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 2026-08-31.
jazz_agent AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| jazz_agent AGENTS.mdBrian-Egan/jazz_agent | Instructions file | 0 | 27d ago | MIT | A | 2,545 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,685 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode model-prompts.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 2,022 | GitHub Copilot |