doc-condenser

doc-condenser is a skill for Claude Code from Mathews-Tom/armory. It costs 37 tokens per session (1,156 once invoked), scanned A, original, MIT.

An archived set of instructions for shortening long technical documents into developer-focused specifications. It favors file paths, tables, brief explanations, and small code examples.

In plain words
What is it for?
Use it only as a reference for its former output style, such as organizing implementation files, metrics, paths, and architecture notes. It is not described as providing a current capability.
Why use it?
It is marked deprecated because current language models already summarize documents well without it. The included format rules may still help explain how older summaries were structured.

Skill for Claude Code

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

Part of the armory plugin — 98 skills shipped together

Good fit Use it only as a reference for its former output style, such as organizing implementation files, metrics, paths, and architecture notes. It is not described as providing a current capability.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mathews-tom/armory/doc-condenser
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 Mathews-Tom/armory --skill doc-condenser
Clone the repo
git clone --depth 1 https://github.com/Mathews-Tom/armory

Made for: Claude Code.

Or install armory, the plugin that ships this one along with the rest of its 98 skills.

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 doc-condenser

README.md
[![agentmods](https://agentmods.dev/badge/skills/mathews-tom/armory/doc-condenser/github.svg)](https://agentmods.dev/skills/mathews-tom/armory/doc-condenser)
Your own site
<a href="https://agentmods.dev/skills/mathews-tom/armory/doc-condenser"><img src="https://agentmods.dev/badge/skills/mathews-tom/armory/doc-condenser/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 doc-condenser

Your own site · 80×15
<a href="https://agentmods.dev/skills/mathews-tom/armory/doc-condenser"><img src="https://agentmods.dev/badge/skills/mathews-tom/armory/doc-condenser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,156 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. 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 $0.00037 $0.01156
Opus 5.5 $0.00015 $0.00462
Sonnet 5.5 $0.00007 $0.00231
Haiku 4.5 $0.00004 $0.00116

Measured 2mo ago against content hash 2e434abd282f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

doc-condenser 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 2mo 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.

archive/skills/doc-condenser/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.

DEPRECATED — Modern Claude models condense and summarize technical documentation natively with comparable quality. The output format preferences encoded here (40% length cap, tables over prose, paths first) are too generic to justify skill overhead. Retained for archival reference only.

Document Condenser

Transform verbose technical documentation into concise, developer-focused specs.

Core Principles

  1. Paths first - Every file reference includes full/relative path
  2. Tables over prose - Use tables for metrics, coverage, file lists
  3. Code samples stay - Keep small, illustrative snippets; remove verbose examples
  4. Commentary, not explanation - Brief context sentences, not paragraphs
  5. One-line history - Reference legacy docs, don't preserve their content

Output Structure

# [path/to/output.md]

# [Title] - [Subtitle if needed]

## Purpose

[2-3 sentences: what this is, why it exists, key design principle]

## Status

[Table: metrics, rates, performance]

## Architecture Overview

[Optional diagram or brief flow description]
[Only if it aids understanding]

## Implementation Files

[Grouped by category with paths and one-line descriptions]

## [Domain-Specific Sections]

[Tables, code snippets, brief commentary as needed]

## Quick Reference

[Box or code block with key stats for scanning]

See assets/template.md for a copy-ready scaffold of this structure.

Transformation Rules

KEEP

  • File paths (always full or project-relative)
  • Metrics and measurements
  • Code snippets under 15 lines that illustrate patterns
  • Schema examples and data structures
  • Coverage/status tables

CONDENSE

  • Multi-paragraph explanations → 1-2 sentences
  • Verbose examples → representative snippet + "see X for more"
  • Implementation checklists → completion status table
  • Long rationales → single "Design principle: X" line
  • Code snippets longer than 20 lines → condense to the core pattern + a reference comment pointing to the source file
  • Rationale sections where the same point is restated across more than 3 sentences → collapse to one "Design principle:" line

Read the full file on GitHub · 153 lines

Files

What ships with it

3 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.

  1. 2mo ago First seen · 153 lines · 37 tokens per session scan A 2e434abd282f

Subscribe to this mod's changes

doc-condenser is a skill published in the GitHub repository Mathews-Tom/armory (337 stars, last pushed 3d ago), licensed MIT. It adds 37 tokens to every session and 1,156 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 2026-08-30.

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