Borrowing it
Nothing to install: this file belongs to droxer/Synapse. 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/droxer/Synapse/main/CLAUDE.mdgit clone --depth 1 https://github.com/droxer/SynapseWrote 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/droxer/synapse/claude-md)<a href="https://agentmods.dev/instructions/droxer/synapse/claude-md"><img src="https://agentmods.dev/badge/instructions/droxer/synapse/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.
<a href="https://agentmods.dev/instructions/droxer/synapse/claude-md"><img src="https://agentmods.dev/badge/instructions/droxer/synapse/claude-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 | $0.00707 | $0.00707 |
| Opus 5.5 | $0.00283 | $0.00283 |
| Sonnet 5.5 | $0.00141 | $0.00141 |
| Haiku 4.5 | $0.00071 | $0.00071 |
Grade A, and why
Synapse 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.
This is a copy
88% identical to Synapse AGENTS.md — 81 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Navigation map for Claude Code (claude.ai/code) in this repository. Detailed content lives under **docs/reference/; the full doc tree is **[docs/README.md](docs/README.md).
Commands and quality
| Topic | Doc |
|---|---|
Makefile (make dev, install, lint, desktop) |
[docs/reference/commands.md](docs/reference/commands.md) |
| pytest, ruff | [docs/reference/backend-testing.md](docs/reference/backend-testing.md) |
Agent evals (make evals, JSON report) |
[docs/reference/agent-evals.md](docs/reference/agent-evals.md) |
| Alembic migrations | [docs/reference/database-migrations.md](docs/reference/database-migrations.md) |
Code style
| Topic | Doc |
|---|---|
| Python / FastAPI | [docs/reference/style-python.md](docs/reference/style-python.md) |
| TypeScript / Next.js | [docs/reference/style-typescript.md](docs/reference/style-typescript.md) |
| Design system (tokens, radii, colors, typography) | [docs/reference/design-system.md](docs/reference/design-system.md) |
Architecture and layout
| Topic | Doc |
|---|---|
| Stack overview (FastAPI, Next.js, SSE) | [docs/reference/architecture-overview.md](docs/reference/architecture-overview.md) |
backend/ map |
[docs/reference/backend-layout.md](docs/reference/backend-layout.md) |
web/ map |
[docs/reference/frontend-layout.md](docs/reference/frontend-layout.md) |
| Tauri desktop shell | [docs/reference/desktop-shell.md](docs/reference/desktop-shell.md) |
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 · 66 lines · 707 tokens per session scan A 30a04e0b2167
Synapse CLAUDE.md is an instructions file published in the GitHub repository droxer/Synapse (5 stars, last pushed 25d ago), licensed Apache-2.0. It adds 707 tokens to every session, about $0.0028 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to Synapse AGENTS.md, differing in 81 lines, and is treated as a copy.
Synapse CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Synapse CLAUDE.mddroxer/Synapse | Instructions file | 5 | 25d ago | Apache-2.0 | A | 707 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | 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 | today | 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 |