Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/postoaklabs/ainumbers/claude-mdgit clone --depth 1 https://github.com/PostOakLabs/ainumbersWrote 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/postoaklabs/ainumbers/claude-md)<a href="https://agentmods.dev/instructions/postoaklabs/ainumbers/claude-md"><img src="https://agentmods.dev/badge/instructions/postoaklabs/ainumbers/claude-md.svg" alt="Measured on agentmods" 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 | $0.03384 | $0.03384 |
| Opus 5 | $0.01692 | $0.01692 |
| Sonnet 5 | $0.00677 | $0.00677 |
| Haiku 4.5 | $0.00338 | $0.00338 |
Grade A, and why
ainumbers 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 3d 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 — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — repo/ Build Directive
Scoped to the deployable code in this folder. For workspace layout, git workflow, and project context read
../CLAUDE.mdfirst.
Role: Deterministic, privacy-first fintech web engineer.
SSOT: CONTRACT.md — read in full before generating, modifying, or validating any file.
🗂️ Repository Structure
ainumbers/
├── CONTRACT.md ← SSOT — read before any build
├── index.html ← Main dashboard (tool grid, category filters, search)
├── sitemap.html / contact.html / about.html
├── tools/ ← standalone tool HTML files (numbered, pf-, rbe-, named)
├── guides/ ← integration hub HTML files (*-hub.html)
├── manifests/ ← MCP tool manifests (one per tool)
├── sitemap.xml / robots.txt / llms.txt
Canonical tool template: tools/152-baas-provider-comparator.html
Canonical manifest template: manifests/01-a2a-fee-route-optimizer.manifest.json
🔒 Non-Negotiable Constraints
- Single self-contained
.htmlper tool. Inline CSS/JS only. Google Fonts (DM Serif Display,Sora,JetBrains Mono) only. - Zero network calls. No
fetch,async,WebWorker, external APIs, or CDNs after page load. - Zero PII. No storage, logging, or transmission of personal/identifiable data.
- Storage: All client storage forbidden —
sessionStorage,localStorage,cookies,IndexedDB. All state is in-memory. (ain_langsessionStorage exemption removed — lang toggle deferred; seeCONTRACT.md§1.1.) - Routing: Tools in
tools/must use../relative paths to reach root assets. Index usestools/andguides/prefixes for all internal links. Absolute URLs reserved strictly forsuite-registry.json& external MCP endpoints. - License: CC BY 4.0. Code must be readable, commented, and attribution-ready.
- Reader-facing copy (CONTRACT §1.4): Public HTML prose and
chaingraph.jsondescriptions must pass the copy-hallmarks gate — no em-dashes (en-dash ranges fine; §1.3 banner exempt) and no build codes (Wave N,W-A…W-G,D0) in visible text. Gate:node scripts/check-copy-hallmarks.mjs(in preflight + CI);scripts/copy-hallmarks-baseline.jsonshields unswept legacy debt, counts only go down. - Author every code/data file with the Write/Edit tools — NEVER a bash heredoc,
echo, orprintf. Kernel/HTML/JSON content is full of', backticks, and$; piping it through a shell produces unterminated-quote /unexpected EOFerrors and silently-truncated files. The JS-syntax gate is the backstop, but write files directly and the failure never happens. execution_hash— callexecutionHash(policy_parameters, output_payload)fromchaingraph/kernels/_hash.mjs. NEVER hand-build the{policy_parameters, output_payload}preimage orJSON.stringifyit yourself. There is exactly one correct canonicalization (RFC 8785 / JCScgCanon) and it lives in_hash.mjs. Ad-hoc canonicalization tripslint-forbidden-hash("Scheme E"); if it ever does, runnode chaingraph/kernels/fix-hash-scheme.mjs. Copy the hash path from a proven kernel (e.g.art-213).
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.
- 3d ago First seen · 102 lines · 3,384 tokens per session scan A 2b696fb397af
ainumbers CLAUDE.md is an instructions file published in the GitHub repository PostOakLabs/ainumbers (5 stars, last pushed 3d ago), licensed MIT. It adds 3,384 tokens to every session, about $0.0169 per session on Opus 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.
Other instructions, from other repositories
ATF-AI copilot-instructions.md
Instructions for agronetlabs/ATF-AI, covering atf-ai repository instructions for github copilot, governance boundary, core vs. adapter changes, rwa privileged actions and security.
Vibe-Research AGENTS.md
Instructions for simonlin1212/Vibe-Research, covering vibe-research-agent 金融研究宪法, 0. 三条不可越线, 1. 数据纪律(五问 gate:给出任何数字或结论前逐条自问), 2. 研究哲学(评估框架,不是预测工具) and 3. 估值口径(你只选输入、解释输出;计算交给 calc/).
clawock AGENTS.md
Instructions for KCNyu/clawock, covering agents.md - your workspace, every session, kcn 偏好, git hook (one-time setup per clone) and git auto-commit rules.
kiasumiles AGENTS.md
Instructions for hosanxiv/kiasumiles, covering project, architecture, commands and agent behavior.
waylMCP CLAUDE.md
Claude Code instructions for muthanii/waylMCP, covering claude.md, what this is, layout, commands and conventions.
agent-memory AGENTS.md
Instructions for acn-ericlaw/agent-memory, a project described as: A lightweight, vendor-neutral AI memory tool for human–AI collaboration that turns a clear, shared vision into deterministic delivery with near-zero drift.