What is symphony CLAUDE.md?

A project guide for Symphony, a Rust service that coordinates coding agents and their work on tracked issues. It tells an agent which project documents to read and which commands to run.

Use it to orient an agent, find the right documentation, understand Symphony’s crates, and run its smoke tests and command-line checks.

It reduces guesswork about the repository’s architecture, current plans, rules, and quality checks before making changes.

How broomva/symphony configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to broomva/symphony. 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/broomva/symphony/master/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/broomva/symphony

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/broomva/symphony/claude-md/github.svg)](https://agentmods.dev/instructions/broomva/symphony/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/broomva/symphony/claude-md"><img src="https://agentmods.dev/badge/instructions/broomva/symphony/claude-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/broomva/symphony/claude-md"><img src="https://agentmods.dev/badge/instructions/broomva/symphony/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,865 This file is loaded in full into every session.

When invoked 2,865 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.

Model	Per session	Once invoked
Fable 5.1	$0.02865	$0.02865
Opus 5.5	$0.01146	$0.01146
Sonnet 5.5	$0.00573	$0.00573
Haiku 4.5	$0.00286	$0.00286

Measured 2mo ago against content hash b170aa8e11f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

symphony CLAUDE.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.

CLAUDE.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - Symphony

Project

Symphony is a Rust-based orchestration service for coding agents. See AGENTS.md for architecture, PLANS.md for roadmap, CONTROL.md for quality gates.

Gathering Context

Before starting work, orient yourself using the knowledge graph:

Read this file and AGENTS.md — conventions, architecture, obligations
Check project state — docs/roadmap/Project Status.md and .planning/STATE.md
Explore relevant docs — traverse [[wikilinks]] from the entry points:
- docs/Symphony Index.md — vault navigation hub
- docs/architecture/Crate Map.md — which crate owns what
- docs/crates/<crate-name>.md — per-crate API, tests, spec coverage
- docs/operations/Configuration Reference.md — WORKFLOW.md format
- docs/operations/Control Harness.md — build gates, test counts
Check CONTROL.md — setpoints your changes must satisfy
Check PLANS.md — current phase and remaining tasks
Check .planning/REQUIREMENTS.md — spec conformance checklist

When in doubt about behavior, consult the canonical spec: /Users/broomva/Downloads/Symphony SPEC.md.

Commands

make smoke — compile + clippy + test (the gate, runs pre-commit)
make check — cargo check + clippy
make test — cargo test --workspace (includes CLI integration tests)
make build — cargo build --release
make control-audit — smoke + format check (before PR)
make fmt — auto-format code
make install — install binary locally

CLI Testing

Integration tests in tests/cli_integration.rs verify the binary end-to-end:

symphony init scaffolds WORKFLOW.md correctly for both tracker types
symphony validate catches missing keys, invalid config
symphony config displays resolved settings (including pr_feedback, done_state)
Init → Validate round-trip: generated workflows pass validation
Remote daemon access: auth rejection works properly
Error paths: missing files, unsupported trackers, overwrite protection

Read the full file on GitHub · 241 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.

2mo ago First seen · 241 lines · 2,865 tokens per session scan A b170aa8e11f3

Subscribe to this mod's changes

symphony CLAUDE.md is an instructions file published in the GitHub repository broomva/symphony (11 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 2,865 tokens to every session, about $0.0115 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.

Autonomous Agents Building agents Project management agent-skills ai-agents bstack-orchestration coding-agents meta skills-sh symphony

symphony CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
symphony CLAUDE.mdbroomva/symphony	Instructions file	11	3mo ago	Apache-2.0	A	2,865	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

symphony: Instructions file for Claude Code