shortify

A review tool for shortening Markdown documentation, code comments, and docstrings. Markdown is a plain-text format commonly used for project documentation.

In plain words
What is it for?
Use it after editing Markdown files inside subdirectories, or run it manually on selected documentation, comments, or docstrings.
Why use it?
It removes repeated ideas, wordy phrasing, and duplicated code examples so technical writing is easier to read.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/kolodkin/devpowers/shortify
Any agent
npx skills add kolodkin/devpowers --skill shortify
Clone the repo
git clone --depth 1 https://github.com/kolodkin/devpowers

Made for: Claude Code, Codex.

Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 853 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00075 $0.00853
Opus 5 $0.00037 $0.00426
Sonnet 5 $0.00015 $0.00171
Haiku 4.5 $0.00007 $0.00085

Measured yesterday against content hash 5ce8584ebe25, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

shortify 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 yesterday.

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.

skills/shortify/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

shortify

Apply as a review pass after writing or editing .md files in subdirectories, or manually via /shortify [file-or-glob].

Scope: Any .md file inside a subdirectory (e.g. docs/, src/), plus code comments and docstrings in source files. Skip: CLAUDE.md, README.md, CHANGELOG.md, LICENSE.md, and any root-level .md files — these have their own conventions.

Auto vs. manual:

  • Markdown triggers automatically as a review pass after .md edits in subdirectories.
  • Code comments & docstrings are manual-only — never auto-triggered by a code edit. Run them on request: /shortify <file-or-glob> on source files, or when the user opts in for the session ("apply shortify to my comments this session"), after which apply it as a review pass to code you edit for the rest of that session.

Checklist (markdown)

Apply in order:

1. Kill Redundancy

  • Remove text that restates what code already shows — link to the source instead.
  • One example per concept. Delete duplicates.
  • Merge overlapping sections — keep the clearer one.

2. Cut Wordiness

  • Replace wordy phrases: "In order to" -> "To", "It is important to note that" -> delete, "This allows you to" -> delete or rephrase.
  • Remove filler sentences that add no information.
  • Prefer bullet lists over paragraphs for reference material.

3. Tighten Structure

  • Delete empty/trivial sections. Merge one-sentence sections into neighbors.
  • Shorten introductions — title + one sentence is enough.
  • Flatten heading depth: # and ## only. Avoid ### and deeper — restructure instead.

4. Reference Code, Don't Duplicate

  • Replace inline implementations with references: See DataContext.query() in aaiclick/data/data_context.py.
  • Keep short usage examples (3-5 lines). Delete long inline code.
  • API docs: call signature + one example, not internals.

5. Preserve

  • Content with no other source (design decisions, rationale, gotchas).
  • Non-obvious usage examples and genuine !!! warning admonitions.
  • Do NOT change referenced code — only the surrounding text.

Read the full file on GitHub · 77 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. yesterday First seen · 77 lines · 75 tokens per session scan A 5ce8584ebe25

Subscribe to this mod's changes

shortify is a skill published in the GitHub repository kolodkin/devpowers (2 stars, last pushed 23d ago), licensed MIT. It adds 75 tokens to every session and 853 once invoked, about $0.0004 per session on Opus 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 2026-08-31.

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