arknights-mcp: Instructions file for Claude Code

CLAUDE.md

arknights-mcp CLAUDE.md is an instructions file for Claude Code from rendyuwu/arknights-mcp. It costs 729 tokens per session, scanned A, original, Apache-2.0.

Claude Code instructions for the arknights-mcp repository. They point to the main guardrails and map different kinds of code to their intended folders.

In plain words
What is it for?
Use them before editing arknights-mcp, alongside AGENTS.md, especially when deciding where a change belongs.
Why use it?
They help agents follow the repository's required reading order and keep source adapters, imports, database code, and analysis code separated.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is rendyuwu/arknights-mcp's own configuration. It tells Claude Code how to work on arknights-mcp 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 arknights-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to rendyuwu/arknights-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.

Copy the file
curl -O https://raw.githubusercontent.com/rendyuwu/arknights-mcp/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/rendyuwu/arknights-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 729 This file is loaded in full into every session.
When invoked 729 The same file — it is already loaded in full.
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 $0.00729 $0.00729
Opus 5 $0.00365 $0.00365
Sonnet 5 $0.00146 $0.00146
Haiku 4.5 $0.00073 $0.00073

Measured 7d ago against content hash 8b12d9bb246b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

arknights-mcp 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 7d 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.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for Claude Code (and other AI agents) working in this repository.

The canonical guardrails live in AGENTS.md — read it first. It carries the architecture rules, the hard invariants (never/always), and the toolchain. This file adds Claude-Code-specific context only.

Read before editing

  1. Arknights_MCP_PRD_v0.1_FINAL.md — product requirements. PRD Section 18 (D1–D15) is binding; changes require an ADR (docs/adr/).
  2. SPEC.md — the distilled design of record (goal §G, constraints §C, interfaces §I, invariants §V, tasks §T, bugs §B). It uses the caveman encoding described in FORMAT.md.
  3. AGENTS.md — the do/never guardrails.

Layer map (where things go)

Concern Location
Source adapters src/arknights_mcp/sources/
Field allowlist src/arknights_mcp/importers/field_policy.py
Parsers / importers src/arknights_mcp/importers/
Migrations (SQL) src/arknights_mcp/migrations/*.sql + runner src/arknights_mcp/db/migrations.py
Data access (read-only) src/arknights_mcp/db/, db/repositories/
Analyzers / rules src/arknights_mcp/analyzers/, analyzers/rules/
Domain services (shared by both transports) src/arknights_mcp/services/
MCP schemas / registry src/arknights_mcp/models/, src/arknights_mcp/mcp/
Transports src/arknights_mcp/transports/
Auth / middleware src/arknights_mcp/auth/, src/arknights_mcp/middleware/

Working rhythm

  • Build against SPEC.md §T, one task at a time. Flip the status cell .~x; commit per task as T<n>: <goal> with the §V cites.

  • Run the verification gate before committing:

    uv run ruff check . && uv run ruff format --check . && uv run mypy && uv run pytest -q
    
  • On a test/build failure, consider backprop: is the failure a code bug, a wrong spec, or an unspecified edge case? If the spec is wrong or incomplete, update SPEC.md §V/§B first, then fix the code.

Read the full file on GitHub · 56 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. 7d ago First seen · 56 lines · 729 tokens per session scan A 8b12d9bb246b

Subscribe to this mod's changes

arknights-mcp CLAUDE.md is an instructions file published in the GitHub repository rendyuwu/arknights-mcp (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 729 tokens to every session, about $0.0036 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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