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assembly-api-mcp: Skill for Claude Code

.claude/skills/implement-mcp/SKILL.md

implement-mcp is a skill for Claude Code from hollobit/assembly-api-mcp. It costs 24 tokens per session (393 once invoked), scanned A, original, MIT.

A workflow for turning an approved design for MCP tools into TypeScript code. MCP is a way for an application to expose tools that an AI agent can call.

In plain words
What is it for?
It is for adding API codes and tool parameters, isolating failed operations, running TypeScript and test checks, updating documentation, and optionally deploying or publishing the package.
Why use it?
It keeps implementation, tests, documentation, version changes, and release tasks together so they are less likely to fall out of sync.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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

not rated 94repo 6mo ago A scan 24 tokens original MIT
View source ↗ hollobit/assembly-api-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to hollobit/assembly-api-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/hollobit/assembly-api-mcp/main/.claude/skills/implement-mcp/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/hollobit/assembly-api-mcp

Made for: Claude Code.

Wrote 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.

agentmods badge for implement-mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/hollobit/assembly-api-mcp/implement-mcp/github.svg)](https://agentmods.dev/skills/hollobit/assembly-api-mcp/implement-mcp)
Your own site
<a href="https://agentmods.dev/skills/hollobit/assembly-api-mcp/implement-mcp"><img src="https://agentmods.dev/badge/skills/hollobit/assembly-api-mcp/implement-mcp/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.

agentmods 80×15 button for implement-mcp

Your own site · 80×15
<a href="https://agentmods.dev/skills/hollobit/assembly-api-mcp/implement-mcp"><img src="https://agentmods.dev/badge/skills/hollobit/assembly-api-mcp/implement-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 393 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 $0.00024 $0.00393
Opus 5.5 $0.00010 $0.00157
Sonnet 5.5 $0.00005 $0.00079
Haiku 4.5 $0.00002 $0.00039

Measured 2mo ago against content hash 066fad26ac67, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

implement-mcp 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 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.

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/implement-mcp/SKILL.md · 51 lines

What it actually says

Implement MCP Skill

승인된 도구 설계를 TypeScript로 구현합니다.

트리거

  • "이 API를 도구에 추가해줘"
  • "설계대로 구현해줘"
  • "Tier N 통합 진행해줘"

워크플로

  1. 설계 확인

    • _workspace/design-*.md 또는 Plans.md에서 구현 대상 확인
    • 변경 파일 목록 파악

  2. 구현 (mcp-developer)

    • API 코드 등록 (src/api/codes.ts)
    • 도구 파일 수정 (src/tools/lite/*.ts, src/tools/full/*.ts)
    • Promise.allSettled로 실패 격리
    • Zod 스키마 파라미터 추가

  3. 검증

    • npx tsc --noEmit 빌드 확인
    • npm test 테스트 통과
    • 기존 사용자 영향 없음 확인

  4. 문서 동기화 (중요!)

    • docs/tool-mapping.md 매핑 업데이트
    • README.md 수치 반영 (기억: feedback_doc_sync)
    • 버전 변경 시 5곳 동시 업데이트 (기억: feedback_versioning)

  5. 커밋 + 배포

    • conventional commit 형식
    • fly deploy (원격 서버)
    • npm publish (패키지, 필요 시)

체크리스트

  • 빌드 통과
  • 테스트 통과
  • 문서 동기화
  • Breaking change 여부 확인
  • 버전 업데이트 (필요 시)
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. 2mo ago First seen · 51 lines · 24 tokens per session scan A 066fad26ac67

Subscribe to this mod's changes

implement-mcp is a skill published in the GitHub repository hollobit/assembly-api-mcp (94 stars, last pushed 6mo ago), licensed MIT. It adds 24 tokens to every session and 393 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Building agentsLanguagesTypeScriptapiassemblyopenapiopendata
Related

implement-mcp compared with skills from other repositories

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