cookie-mcp AGENTS.md

Contributor instructions for cookie-mcp, a local MCP server that exposes Cookie Chain actions to AI agents. It describes the project structure, security rules, and conventions for adding tools.

In plain words
What is it for?
Use them when contributing to cookie-mcp, adding Cookie Chain tools, changing wallet or transaction logic, or updating its HTTP, RPC, launchpad, and formatting code.
Why use it?
They keep blockchain actions non-custodial, limit wallet spending, and ensure the server remains testable and consistent as features are added.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/cookiechain/cookie-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/cookiechain/cookie-mcp

Made for: Codex, OpenCode.

Per session 1,350 This file is loaded in full into every session.
When invoked 1,350 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01350 $0.01350
Opus 5 $0.00675 $0.00675
Sonnet 5 $0.00270 $0.00270
Haiku 4.5 $0.00135 $0.00135

Measured 2d ago against content hash 971f02f40068, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cookie-mcp AGENTS.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 2d 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.

AGENTS.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

A local stdio MCP server that exposes Cookie Chain actions to any AI agent. It runs on the contributor's machine and signs with their key — non-custodial by design. This is a community/ecosystem project for all Cookie Chain developers: Cookiebox, Candy Shop, CookieSwap, Baked Bazaar and Hyperlane are venues it uses, not owners. Keep code and docs venue-neutral.

Layout

src/
  mcp/server.ts        # the ONLY entry point: registers every tool, thin wrappers over core/
  core/                # all logic lives here — pure, testable, framework-agnostic
    config.ts          #   constants, program IDs, endpoints
    rpc.ts             #   getConnection()
    wallet.ts          #   key loading, requireWallet(), assertWithinSpendCap()
    errors.ts          #   CookieMcpError — the one error type surfaced to agents
    format.ts          #   rawToUi / uiToRaw / shortAddr — always go through these
    http.ts            #   fetchJson with retry policy
    launchpad/         #   MomoSwap launchpad: api (HTTP client) + curve (quote math) + positions (PDAs)
                       #   + program (which deployment: PDA scope + error-code build)
    domains/           #   CookOven `.cook` names: names (rules + pricing) + program (ixs/PDAs/decode)
                       #   + marketplace (market.cookoven.xyz ixs/PDAs/decode) + market (listings, buy/
                       #   sell ops) + shared (reads both halves need — escrow awareness lives here)
    liquidity/         #   create/add/remove/lock/claim across damm, cpAmm, clmm, cookieswap
    nft/               #   Baked Bazaar: auctionHouse (writes) + bazaar (reads)
  idl/                 # committed IDLs (cp_amm, whirlpool, cookie_domains)
scripts/               # smoke.ts (boots server, asserts tool count) + verify-*.ts (live checks)

Golden rule: tools in server.ts stay thin — tool(async (a) => coreFn(a)). All real work (tx building, encoding, API calls) lives in src/core/, so it can be unit-tested without MCP.

Read the full file on GitHub · 89 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. 2d ago First seen · 89 lines · 1,350 tokens per session scan A 971f02f40068

Subscribe to this mod's changes

cookie-mcp AGENTS.md is an instructions file published in the GitHub repository cookiechain/cookie-mcp (3 stars, last pushed 4d ago), licensed MIT. It adds 1,350 tokens to every session, about $0.0068 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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