Borrowing it
Nothing to install: this file belongs to synaptiai/agent-capability-standard. 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/synaptiai/agent-capability-standard/main/CLAUDE.mdgit clone --depth 1 https://github.com/synaptiai/agent-capability-standardWrote 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/synaptiai/agent-capability-standard/claude-md)<a href="https://agentmods.dev/instructions/synaptiai/agent-capability-standard/claude-md"><img src="https://agentmods.dev/badge/instructions/synaptiai/agent-capability-standard/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/synaptiai/agent-capability-standard/claude-md"><img src="https://agentmods.dev/badge/instructions/synaptiai/agent-capability-standard/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 | $0.02946 | $0.02946 |
| Opus 5.5 | $0.01178 | $0.01178 |
| Sonnet 5.5 | $0.00589 | $0.00589 |
| Haiku 4.5 | $0.00295 | $0.00295 |
Grade A, and why
agent-capability-standard 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 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 — 343 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Commands
Validate workflows against the ontology
python tools/validate_workflows.py
Validate domain profiles against schema
python tools/validate_profiles.py
Validate skill file references (no phantom paths)
python tools/validate_skill_refs.py
Validate ontology graph (orphans, cycles, symmetry)
python tools/validate_ontology.py
Validate the five canonical schemas designated by spec §6.1
python tools/validate_canonical_schemas.py
Validate RFC structure against GOVERNANCE requirements
python tools/validate_rfcs.py
Validate constraints.txt agrees with pyproject.toml
python tools/validate_constraints.py
Validate documentation links (no dangling cross-references)
python tools/validate_doc_links.py
Validate YAML utility sync (safe_yaml.py ↔ yaml_util.py)
python tools/validate_yaml_util_sync.py
Validate transform mapping_ref paths (no broken refs)
python tools/validate_transform_refs.py
Validate benchmark deps against ontology
python tools/validate_benchmark_deps.py
Sync skill-local schemas from ontology
python tools/sync_skill_schemas.py
Run conformance tests (optional, local only)
python scripts/run_conformance.py
Setup Python environment (one-time)
python -m venv .venv && source .venv/bin/activate
pip install -e ".[dev]" -c constraints.txt
Install the dev extra rather than individual packages, and pass
-c constraints.txt — that file pins the exact tool versions CI runs, so the
local formatter matches CI's exactly. Without it, ruff>=0.16,<0.17 resolves
to whatever 0.16.x is newest and a reformat can appear in CI that never
appeared locally.
The bounds in pyproject.toml are the supported range; constraints.txt is
the one version CI runs. The range caps each dependency at the major this
repo has been verified against, so a new major is a deliberate bump — run the
suite on it, then raise the cap. Note the range still admits patch and minor
drift: two installs a week apart are not identical unless both use the
constraints file.
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 First seen · 343 lines · 2,946 tokens per session scan A e7f67a308f6d
agent-capability-standard CLAUDE.md is an instructions file published in the GitHub repository synaptiai/agent-capability-standard (6 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 2,946 tokens to every session, about $0.0118 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.
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