markitdown-mcp-skill

markitdown-mcp-skill is a skill for OpenCode from darellchua2/opencode-config-template. It costs 43 tokens per session (3,187 once invoked), scanned A, original, Apache-2.0.

A reference guide for using MarkItDown, a local tool that converts documents and other files into Markdown text. Markdown is plain text with simple formatting used in code repositories and documentation.

In plain words
What is it for?
It documents setup and usage of the conversion tool, including batch conversion, large documents, tables, privacy considerations, and fallback methods.
Why use it?
It gives a consistent way to turn large or multiple documents into text that an agent can inspect and process.

Skill for OpenCode

Written for OpenCode: installed under .opencode/. Also seen: mentions subagents; mentions AGENTS.md; mentions OpenCode.

Good fit It documents setup and usage of the conversion tool, including batch conversion, large documents, tables, privacy considerations, and fallback methods.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/darellchua2/opencode-config-template/markitdown-mcp-skill
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 darellchua2/opencode-config-template --skill markitdown-mcp-skill
Clone the repo
git clone --depth 1 https://github.com/darellchua2/opencode-config-template

Made for: OpenCode.

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 markitdown-mcp-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/markitdown-mcp-skill.svg)](https://agentmods.dev/skills/darellchua2/opencode-config-template/markitdown-mcp-skill)
Your own site
<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/markitdown-mcp-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/markitdown-mcp-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,187 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00043 $0.03187
Opus 5 $0.00022 $0.01594
Sonnet 5 $0.00009 $0.00637
Haiku 4.5 $0.00004 $0.00319

Measured 4d ago against content hash 26a0ad26966a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

markitdown-mcp-skill 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 4d 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.

Makes network callslowCapability

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

│ (single requests.get(), no telemetry, equivalent to webfetch)
opencode_app/.opencode/skills/markitdown-mcp-skill/SKILL.md · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

What this skill does

  • Documents the markitdown MCP server and its single tool convert_to_markdown
  • Provides opencode.json configuration (both mcp and tools blocks)
  • Prescribes a decision tree for choosing markitdown vs image-analyzer-subagent vs pdf-specialist-skill vs pdftotext vs built-in Read
  • Covers usage patterns (large docs, batch conversion, table post-processing)
  • Documents privacy guarantees for company-internal document handling
  • Provides fallback strategies when the MCP is unavailable

Reference: markitdown-local-mcp launcher README · Upstream microsoft/markitdown

Requirements & Honesty Note

Requirement Status
markitdown MCP server in opencode.json mcp block Required for MCP tool access
markitdown-local-mcp binary on PATH Installed via ./deploy/setup.sh (pip) or baked into Docker
mcp.markitdown.enabled: true in opencode.json Currently default false — user must opt in (#262)
tools."markitdown*": true in opencode.json Currently default false — user must opt in (#262)

If any requirement is unmet, MCP tool calls return connection errors. Fall back to pdftotext, image-analyzer-subagent, or built-in Read (see Fallback Strategy below).

Privacy note: markitdown is privacy-safe for local files — the markitdown-local-mcp fork's pyproject.toml trust boundary installs only markitdown[pdf,docx,pptx,xlsx,xls,outlook] (no azure/speech/youtube extras), so conversion is fully local with zero phone-home network calls. Opt-in (enabled: false by default per #262) is a choice of minimal default footprint, not a privacy concern.

Read the full file on GitHub · 242 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. 4d ago First seen · 242 lines · 43 tokens per session scan A 26a0ad26966a

Subscribe to this mod's changes

markitdown-mcp-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 43 tokens to every session and 3,187 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 2026-09-03.

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