Borrowing it
Nothing to install: this file belongs to sebastienrousseau/iso20022-mcp. 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/sebastienrousseau/iso20022-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/sebastienrousseau/iso20022-mcpWrote 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/sebastienrousseau/iso20022-mcp/agents-md)<a href="https://agentmods.dev/instructions/sebastienrousseau/iso20022-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/sebastienrousseau/iso20022-mcp/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/sebastienrousseau/iso20022-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/sebastienrousseau/iso20022-mcp/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 | $0.00927 | $0.00927 |
| Opus 5.5 | $0.00371 | $0.00371 |
| Sonnet 5.5 | $0.00185 | $0.00185 |
| Haiku 4.5 | $0.00093 | $0.00093 |
Grade B, and why
iso20022-mcp AGENTS.md scanned grade B with 1 finding 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 16d 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.
Strips warnings and disclaimersmediumAnti-refusal
Omitting safety caveats hides risk from the user and is a common jailbreak preamble.
2. Ensure linter and formatter pass without warnings or new suppressions. How it starts
The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Invariants for AI-assisted contributions to iso20022-mcp. Read this before changing anything.
Everything here applies equally to humans and automated agents. It is addressed to agents because agents can make breaking changes across multiple files before anyone notices.
1. Core Invariants
- Strict SemVer sequencing policy: Public releases stay on the
0.0.xline and increment strictly by0.0.1. Never manually edit version numbers outside the active release branchfeat/v<next-version>.v0.1.0is forbidden untilv0.0.999exists. - Single Active Release PR Invariant: Across all repositories, there MUST be at most ONE active pull request targeting
main, which MUST be the release iteration branchfeat/v<next-version>. - Dual licensing: The repository is dual-licensed under Apache-2.0 OR MIT. All files must declare an SPDX license header.
- Single source of truth: The version in
pyproject.tomlis the single source of truth. It must agree with__version__,glama.json,server.json,CITATION.cff, andCHANGELOG.md(verified byscripts/verify_versions.py). - No breaking changes to meta-tools: The core meta-tools (
search,list_families,list_servers,describe,validate,generate,parse) provide the unified gateway facade. They must remain side-effect-free, read-only, and idempotent.
2. Before You Claim To Be Done (Verification Gates)
Before concluding any task or preparing a commit, run:
make check
Or run the individual gates:
pytest --cov=iso20022_mcp --cov-branch --cov-report=term-missing --cov-fail-under=100
ruff check .
black --check .
mypy iso20022_mcp
python3 scripts/verify_versions.py
All unit tests and conformance tests must pass with 0 failures, 0 warnings, and 100% line and branch coverage.
3. Hygiene First
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.
- 16d ago Changed · +5 lines · +192 tokens per session 9cc2d498d6c7
- 1mo ago First seen · 50 lines · 735 tokens per session scan B a1140932a62d
iso20022-mcp AGENTS.md is an instructions file published in the GitHub repository sebastienrousseau/iso20022-mcp (1 stars, last pushed yesterday), licensed Apache-2.0. It adds 927 tokens to every session, about $0.0037 per session on Opus 5.5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-05.
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