What is add-ollama-tool?

An integration that lets a container-based agent use models running locally through Ollama, a tool for running language models on your own computer.

Use it for local summarization, translation, general questions, or code-related tasks. It adds tools to list installed Ollama models and send prompts to a selected model.

It gives the agent another place to send work, which can be useful for tasks where local processing is cheaper or faster. It requires Ollama to be installed, running, and stocked with at least one model.

How DingyangLyu/MatClaw configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to DingyangLyu/MatClaw. 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/DingyangLyu/MatClaw/main/.claude/skills/add-ollama-tool/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/DingyangLyu/MatClaw

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dingyanglyu/matclaw/add-ollama-tool/github.svg)](https://agentmods.dev/skills/dingyanglyu/matclaw/add-ollama-tool)

Your own site

<a href="https://agentmods.dev/skills/dingyanglyu/matclaw/add-ollama-tool"><img src="https://agentmods.dev/badge/skills/dingyanglyu/matclaw/add-ollama-tool/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dingyanglyu/matclaw/add-ollama-tool"><img src="https://agentmods.dev/badge/skills/dingyanglyu/matclaw/add-ollama-tool.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,162 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00034	$0.01162
Opus 5	$0.00017	$0.00581
Sonnet 5	$0.00007	$0.00232
Haiku 4.5	$0.00003	$0.00116

Measured 10d ago against content hash f529a94f9bc1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

add-ollama-tool scanned grade A with 1 finding 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 10d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (add/container/agent-runner/src/ollama-mcp-stdio.ts, add/scripts/ollama-watch.sh, modify/container/agent-runner/src/index.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

2. Check Docker can reach the host: `docker run --rm curlimages/curl curl -s http://host.docker.internal:11434/api/tags`

.claude/skills/add-ollama-tool/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Add Ollama Integration

This skill adds a stdio-based MCP server that exposes local Ollama models as tools for the container agent. Claude remains the orchestrator but can offload work to local models.

Tools added:

ollama_list_models — lists installed Ollama models
ollama_generate — sends a prompt to a specified model and returns the response

Phase 1: Pre-flight

Check if already applied

Read .matclaw/state.yaml. If ollama is in applied_skills, skip to Phase 3 (Configure). The code changes are already in place.

Check prerequisites

Verify Ollama is installed and running on the host:

ollama list

If Ollama is not installed, direct the user to https://ollama.com/download.

If no models are installed, suggest pulling one:

You need at least one model. I recommend:

ollama pull gemma3:1b    # Small, fast (1GB)
ollama pull llama3.2     # Good general purpose (2GB)
ollama pull qwen3-coder:30b  # Best for code tasks (18GB)

Phase 2: Apply Code Changes

Run the skills engine to apply this skill's code package.

Initialize skills system (if needed)

If .matclaw/ directory doesn't exist yet:

npx tsx scripts/apply-skill.ts --init

Apply the skill

npx tsx scripts/apply-skill.ts .claude/skills/add-ollama-tool

This deterministically:

Adds container/agent-runner/src/ollama-mcp-stdio.ts (Ollama MCP server)
Adds scripts/ollama-watch.sh (macOS notification watcher)
Three-way merges Ollama MCP config into container/agent-runner/src/index.ts (allowedTools + mcpServers)
Three-way merges [OLLAMA] log surfacing into src/container-runner.ts
Records the application in .matclaw/state.yaml

If the apply reports merge conflicts, read the intent files:

modify/container/agent-runner/src/index.ts.intent.md — what changed and invariants
modify/src/container-runner.ts.intent.md — what changed and invariants

Copy to per-group agent-runner

Existing groups have a cached copy of the agent-runner source. Copy the new files:

Read the full file on GitHub · 153 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

10d ago First seen · 153 lines · 34 tokens per session scan A f529a94f9bc1

Subscribe to this mod's changes

add-ollama-tool is a skill published in the GitHub repository DingyangLyu/MatClaw (90 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,162 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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MatClaw: Skill for Claude Code