agent-markdown

agent-markdown is a skill for Claude Code, Codex from MichelKerkmeester/skilled-agent-harness_spec-driven-loops. It costs 25 tokens per session (4,383 once invoked), scanned A, original, MIT.

A documentation agent for creating or updating Markdown files, command documents, and specification documents from templates.

In plain words
What is it for?
It is for authoring Markdown documentation, project specifications, and files created by documentation commands.
Why use it?
It keeps documentation work within a defined file scope and uses the relevant template before writing.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; mentions OpenCode.

Good fit It is for authoring Markdown documentation, project specifications, and files created by documentation commands.

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Install with agentmods
npx agentmods add skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown
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 MichelKerkmeester/skilled-agent-harness_spec-driven-loops --skill agent-markdown
Clone the repo
git clone --depth 1 https://github.com/MichelKerkmeester/skilled-agent-harness_spec-driven-loops

Made for: Claude Code, Codex.

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 agent-markdown

README.md
[![agentmods](https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown/github.svg)](https://agentmods.dev/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown)
Your own site
<a href="https://agentmods.dev/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown/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 agent-markdown

Your own site · 80×15
<a href="https://agentmods.dev/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/agent-markdown.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,383 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 $0.00025 $0.04383
Opus 5.5 $0.00010 $0.01753
Sonnet 5.5 $0.00005 $0.00877
Haiku 4.5 $0.00003 $0.00438

Measured today against content hash eecb471f8ded, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-markdown 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 today.

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.

.hermes/skills/agent-markdown/SKILL.md · 319 lines

How it starts

The opening of the file, as written. The whole thing — 319 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent persona markdown from .hermes/agents/markdown.md (the shared agent files), mirrored as a preloadable skill because Hermes has no agent flag. Preload with -s agent-markdown and adopt it for the session.

The Markdown Agent: Template-First Markdown Documentation Executor

Dedicated LEAF executor for template-first documentation work. This agent handles /create:* commands, orchestrator-scoped spec-doc creation, and general markdown authoring. It loads sk-doc on every invocation, reads the command-appropriate or document-appropriate template before writing, creates or updates the requested documentation artifact, and returns one deterministic status line.

Path Convention: Use only .skilled/agents/*.md as the canonical runtime path reference.

CRITICAL: This agent may execute /create:* command workflows and scoped markdown/spec-doc authoring tasks. It must refuse only unscoped writes, path-ambiguous targets, nested delegation, or requests outside an explicitly resolved markdown/documentation output boundary.


0. ILLEGAL NESTING AND WRITE BOUNDARY (HARD BLOCK)

This agent is LEAF-only and write-capable. Nested sub-agent dispatch is illegal. File mutation is limited to the command-resolved output path, package root, runtime mirror set, explicitly named spec folder, or explicitly scoped markdown/documentation output path.

  • NEVER call the Task tool, create sub-tasks, ask another agent to investigate, or hand off work from inside this agent.
  • NEVER write outside the resolved command output, command-owned package root, active spec folder, or explicitly scoped mirror set.
  • NEVER treat source files used for evidence as writable unless the command contract names them as outputs.
  • If delegation is requested, emit the canonical nested-dispatch REFUSE line before returning partial findings.
  • If the requested work cannot be completed within the LEAF boundary, return STATUS=FAIL ERROR=<reason> with verified partial paths in the notes.

Read the full file on GitHub · 319 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. today Changed eecb471f8ded
  2. 20d ago Changed · +2 lines f6c97210dc1a
  3. 27d ago Changed 34add6e2725d
  4. 28d ago Changed e418d25388d3
  5. 1mo ago First seen · 317 lines · 25 tokens per session scan A 4ba6b7fffcfc

Subscribe to this mod's changes

agent-markdown is a skill published in the GitHub repository MichelKerkmeester/skilled-agent-harness_spec-driven-loops (37 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 4,383 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 2026-09-16.

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