mcp-tools

mcp-tools is a skill for Claude Code from komluk/scaffolding. It costs 56 tokens per session (1,545 once invoked), scanned A, original, MIT.

A decision guide for choosing between an MCP tool and a built-in tool such as the shell or web search. MCP, or Model Context Protocol, is a standard way for AI systems to use external tools.

In plain words
What is it for?
Use it when a task could be handled by an MCP integration or a built-in capability, including work with databases, browsers, GitHub, Docker, Redis, and other listed services.
Why use it?
It helps select the intended tool first and defines a fallback when that tool is unavailable or fails.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the scaffolding plugin — 35 skills, 9 commands, 13 agents shipped together

Good fit Use it when a task could be handled by an MCP integration…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/komluk/scaffolding/mcp-tools
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.

Any agent
npx skills add komluk/scaffolding --skill mcp-tools
Clone the repo
git clone --depth 1 https://github.com/komluk/scaffolding

Made for: Claude Code.

Or install scaffolding, the plugin that ships this one along with the rest of its 35 skills, 9 commands, 13 agents.

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 mcp-tools

README.md
[![agentmods](https://agentmods.dev/badge/skills/komluk/scaffolding/mcp-tools.svg)](https://agentmods.dev/skills/komluk/scaffolding/mcp-tools)
Your own site
<a href="https://agentmods.dev/skills/komluk/scaffolding/mcp-tools"><img src="https://agentmods.dev/badge/skills/komluk/scaffolding/mcp-tools.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,545 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 $0.00056 $0.01545
Opus 5 $0.00028 $0.00772
Sonnet 5 $0.00011 $0.00309
Haiku 4.5 $0.00006 $0.00154

Measured 7d ago against content hash 911334e00ebd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mcp-tools 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.

skills/mcp-tools/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MCP Tools Decision Tree

Priority Order

  1. Does an MCP tool exist for this operation? Use it first.
  2. Did the MCP tool fail (auth missing, plugin unavailable)? Fall back to built-in.
  3. No MCP tool matches? Use built-in tools (Bash, Grep, WebSearch, etc.).

MCP Plugin Quick Reference

Plugin Transport Key Tools Agents
context7 stdio mcp__context7__resolve-library-id, mcp__context7__get-library-docs researcher, developer
playwright stdio mcp__playwright__browser_navigate, mcp__playwright__browser_screenshot developer, debugger
eslint stdio mcp__eslint__* developer, reviewer
sonarqube docker mcp__sonarqube__* developer, reviewer
sequential-thinking stdio mcp__sequential-thinking__* architect, debugger
postgres-mcp stdio mcp__postgres-mcp__* developer, optimizer
redis-mcp stdio mcp__redis-mcp__* developer, devops, debugger
docker stdio mcp__docker__* devops
cron stdio mcp__cron__* devops
ssh-mcp stdio mcp__ssh-mcp__* devops
github http mcp__github__* gitops, architect
google-sheets stdio mcp__google-sheets__* researcher, tech-writer
slack sse mcp__slack__* tech-writer
asana sse mcp__asana__* architect
supabase http mcp__supabase__* optimizer
firebase stdio mcp__firebase__* devops, optimizer
memory stdio 13 tools across search/store/notes/ingest/session tiers (see below) tiered — see Access Control

Semantic Memory MCP

  • Transport: stdio (Python, venv/bin/python -m mcp_servers.semantic_memory)
  • Source: MCP servers in your backend directory (internal, built on fastmcp)
  • Auth: DATABASE_URL (PostgreSQL connection string), SEMANTIC_MEMORY_ENABLED=true
  • Config: .mcp.json at project root

Tools (13 total)

Tool Purpose Parameters
search_context Search ingested context chunks (Qdrant hybrid retrieval) query (required), corpus, top_k
semantic_search Search memories by similarity query (required), project_id, agent_name, top_k, threshold
semantic_recall Recall relevant memories as markdown context (required), agent_name, project_id, top_k
semantic_store Store a new memory with embedding content (required), agent_name (required), project_id, conversation_id, task_id, tags, content_type
store_note Persist a note document corpus, relative_path, content (see notes-tier agents)
read_note Read a note document corpus, relative_path
list_notes List note documents corpus
trigger_ingest Queue ONE document (corpus + relative_path) for immediate re-indexing so a note just written via store_note becomes searchable in seconds instead of up to 15 minutes. Path-scoped only — cannot trigger a full backfill. Returns once queued; does not wait for indexing to finish (~3s to become searchable). Only useful to agents that also have store_note — otherwise you'd be re-indexing someone else's file. corpus (required), relative_path (required)
list_sessions List memory sessions (catalog)
get_session Get a session's details session_id
semantic_list List stored memories (catalog) project_id
semantic_delete Delete a memory memory_id (granted to no agent)
archive_session Archive a session session_id (granted to no agent)

Read the full file on GitHub · 90 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 · 90 lines · 56 tokens per session scan A 911334e00ebd

Subscribe to this mod's changes

mcp-tools is a skill published in the GitHub repository komluk/scaffolding (15 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 1,545 once invoked, about $0.0003 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 2026-08-30.

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