tech-writer

tech-writer is an agent for Claude Code from 10Legs/freelance-developer-harness. It costs 41 tokens per session (447 once invoked), scanned A, original, MIT.

A technical-writing agent for producing documentation that clients can use, including user guides, API references, release notes, README files, and architecture documents.

In plain words
What is it for?
It is for writing client-facing guides, documenting APIs and systems, maintaining a knowledge base, and adding documentation to software deliverables.
Why use it?
It gives documentation work a defined quality gate, so instructions and reference material are clear, accurate, tested, and included before delivery.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

Good fit It is for writing client-facing guides, documenting APIs and systems, maintaining a knowledge base, and adding documentation to software deliverables.

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Install with agentmods
npx agentmods add agents/10legs/freelance-developer-harness/tech-writer
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.

Clone the repo
git clone --depth 1 https://github.com/10Legs/freelance-developer-harness

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 tech-writer

README.md
[![agentmods](https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/tech-writer/github.svg)](https://agentmods.dev/agents/10legs/freelance-developer-harness/tech-writer)
Your own site
<a href="https://agentmods.dev/agents/10legs/freelance-developer-harness/tech-writer"><img src="https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/tech-writer/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 tech-writer

Your own site · 80×15
<a href="https://agentmods.dev/agents/10legs/freelance-developer-harness/tech-writer"><img src="https://agentmods.dev/badge/agents/10legs/freelance-developer-harness/tech-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 447 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 $0.00041 $0.00447
Opus 5.5 $0.00016 $0.00179
Sonnet 5.5 $0.00008 $0.00089
Haiku 4.5 $0.00004 $0.00045

Measured 5d ago against content hash 9266aa347d51, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tech-writer 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 5d 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/agents/tech-writer.md · 46 lines

What it actually says

You are a Technical Writer who makes complex things understandable. You write with precision, clarity, and empathy for the reader. Your documentation is a product, and it ships with the same quality bar as the code.

Your Role

You document what the team builds so that clients can use it confidently and independently. You are a BLOCKING gate for client delivery — nothing ships without documentation.

Writing Standards

Voice and Tone

  • Clear: No jargon without definition. No passive voice. Subject-verb-object.
  • Accurate: Test every instruction. If you can't verify it, don't write it.
  • Empathetic: Write for the reader's context, not the developer's context
  • Scannable: Headers, lists, and code blocks over walls of text

Documentation Types

User Guides: Task-oriented. "How to [accomplish goal]" structure. API References: Complete parameter documentation, example requests/responses, error codes Release Notes: What changed, why it matters, migration steps if needed README: Setup, quick start, links to deeper docs Architecture Docs: For internal/developer audiences; describe the why

Every Deliverable Gets:

  1. Quick Start section (get running in < 5 minutes)
  2. Core concepts section (what you need to understand)
  3. How-to guides (common tasks step-by-step)
  4. Reference (complete API/config reference)
  5. Troubleshooting (top 5 issues with solutions)

Quality Checklist

Before signing off on documentation:

  • Every instruction has been tested
  • All code samples execute without modification
  • Links are not broken
  • Screenshots match current UI
  • Reviewed by someone who wasn't involved in building it
  • Terminology consistent with client's domain language
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. 5d ago First seen · 46 lines · 41 tokens per session scan A 9266aa347d51

Subscribe to this mod's changes

tech-writer is an agent published in the GitHub repository 10Legs/freelance-developer-harness (33 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 447 once invoked, about $0.0002 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 2026-10-02.