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 skills add maminihds/attester-mcp --skill attestergit clone --depth 1 https://github.com/maminihds/attester-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/skills/maminihds/attester-mcp/attester)<a href="https://agentmods.dev/skills/maminihds/attester-mcp/attester"><img src="https://agentmods.dev/badge/skills/maminihds/attester-mcp/attester/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/skills/maminihds/attester-mcp/attester"><img src="https://agentmods.dev/badge/skills/maminihds/attester-mcp/attester.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 | $0.00118 | $0.02375 |
| Opus 5.5 | $0.00047 | $0.00950 |
| Sonnet 5.5 | $0.00024 | $0.00475 |
| Haiku 4.5 | $0.00012 | $0.00237 |
Grade A, and why
attester scanned grade A 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 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST https://attester.dev/demo/v1/package/exists \ How it starts
The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.
attester.dev: verification oracle for agents
attester.dev is a paid HTTP API that returns signed verdicts. Every answer carries an EIP-191 attestation you can verify offline. The free path needs no account and no funded wallet.
When to use this skill
- Before importing a package name a model suggested. Hallucination rates for suggested packages run 5-20% in published studies.
- When unsure a function, class, or constant exists in a library version.
- Before trusting another agent's citations, code, dataset, or summary.
- Before paying an x402 service you have not paid before.
- When you want a cited answer instead of a guess. Short version: check first, act second.
Auth: start free
Two free paths exist.
Keyless (oracle endpoints only). The four /v1/* oracle endpoints
have /demo/v1/* mirrors that take no headers at all: same pipeline, same
signed answers, 25 calls per day per client IP shared across the four,
resetting 00:00 UTC. Over quota they return HTTP 429 with the paid route
in the body. A valid X-API-Key bypasses the demo quota and is never
charged for it.
X-Payer (every paid endpoint). Send X-Payer with any wallet address
you control. It keys your free quota; nothing else is needed.
X-Payer: 0x0000000000000000000000000000000000000001
Per-endpoint X-Payer free quotas today: 25 research calls, 10 oracle checks, 5 verify or spend checks, 3 judge gradings or watchtower reports. When a quota runs out the call returns HTTP 402 with payment terms.
Paid paths when you outgrow free quota:
X-API-Key: att_live_...prepaid credits. A human buys a pack at https://buy.stripe.com/bJefZhfGo9Uy6zF9ckaZi00 and claims the key atGET /credits/claim?session_id=cs_.... Balance:GET /credits/balancewith the key.- x402 payment per call in USDC on Base, signed by any funded EVM wallet.
Use the official
x402Python SDK (x402HttpxClient); the 402, signing, and retry are automatic.
Endpoints and exact calls
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 218 lines · 118 tokens per session scan A 7eac9cd5020e
attester is a skill published in the GitHub repository maminihds/attester-mcp (0 stars, last pushed 3mo ago), licensed MIT. It adds 118 tokens to every session and 2,375 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
attester compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| attestermaminihds/attester-mcp | Skill | 0 | 3mo ago | MIT | A | 118 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 134k | today | Apache-2.0 | A | 113 | Codex |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 2d ago | MIT | A | 200 | Claude Code, Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 315k | 5d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | yesterday | MIT | A | 95 | Claude Code |