emer-ai-tools: Skill for Claude Code

.claude/skills/emercoin-identity/SKILL.md

emercoin-identity is a skill for Claude Code from emercoin/emer-ai-tools. It costs 72 tokens per session (1,067 once invoked), scanned A, original, MIT.

An Emercoin-based identity and memory layer gives an AI agent a verifiable blockchain identity and lets it store hashes of memories or files. Emercoin is a blockchain network; a hash is a short fingerprint of data.

In plain words
What is it for?
Use it to register an agent identity, record hashes of research or documents, prove records by signature, check blockchain status, and read identities or stored records.
Why use it?
It helps prove which agent made a record and detect later changes to the recorded data. The full content stays off-chain while its fingerprint is stored on-chain.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions AGENTS.md.

This is emercoin/emer-ai-tools's own configuration. It tells Claude Code how to work on emer-ai-tools itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything emer-ai-tools configures →

Reuse

Borrowing it

Nothing to install: this file belongs to emercoin/emer-ai-tools. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/emercoin/emer-ai-tools/main/.claude/skills/emercoin-identity/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/emercoin/emer-ai-tools

Made for: Claude Code.

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README.md
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Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,067 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00072 $0.01067
Opus 5 $0.00036 $0.00534
Sonnet 5 $0.00014 $0.00213
Haiku 4.5 $0.00007 $0.00107

Measured 12d ago against content hash 2da9f34daca6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

emercoin-identity 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 12d 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.

.claude/skills/emercoin-identity/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Emercoin on-chain identity & memory for agents

This project (emer-ai-tools) exposes the Emercoin blockchain as an identity + memory layer for AI agents through the emercoin-agent MCP server. Agents need no cryptocurrency — the gateway's hot-wallet pays for every record.

Read AGENTS.md for the full rationale and trust model. This skill is the operational checklist for using the tools.

When to use

  • An agent wants a durable, verifiable identity → register an identity record.
  • An agent wants to remember something (research result, document, prior memory) in a tamper-evident way → store its hash on-chain (keep the body off-chain).
  • You need to look up an agent's identity or a stored record → read it back.

Prerequisites

The MCP server must be configured (see AGENTS.md → Quickstart). It needs the gateway reachable at GATEWAY_URL. Auth is a session JWT obtained with the device-flow login() + login_poll(), or a pre-set GATEWAY_JWT env var.

Tools (emercoin-agent MCP)

Tool Use it to
node_status() check the node is synced before relying on reads
login() + login_poll(session_id) get a session JWT via GitHub device flow (GitHub identity = root of trust)
register_identity(address, metadata?) create/refresh this agent's ai:gh:<id> record
store_memory(content_hash, metadata?) record one memory/research hash
store_memory_batch(records) record many hashes in ONE atomic transaction
read_record(name) read any record by NVS name

Standard flows

1. Establish identity (once)

  1. login() → show the returned user_code + verification_uri to the user; after they authorize on GitHub, login_poll(<session_id>) caches the JWT.
  2. Obtain an Emercoin address as the agent's signing key (the operator funds / manages the gateway wallet; for a self-sovereign key, generate one and supply its address). You can register first and add/rotate the address later.
  3. register_identity(<address>, {"role": "...", "model": "..."}). This writes ai:gh:<github_id> binding the GitHub id ↔ address on-chain. Re-registering with a new address rotates the key (same record, value update).

Read the full file on GitHub · 81 lines

Changes

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.

  1. 12d ago First seen · 81 lines · 72 tokens per session scan A 2da9f34daca6

Subscribe to this mod's changes

emercoin-identity is a skill published in the GitHub repository emercoin/emer-ai-tools (8 stars, last pushed 8d ago), licensed MIT. It adds 72 tokens to every session and 1,067 once invoked, about $0.0004 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.

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