microsurgery

microsurgery is a skill for Claude Code, Codex from Wondermonger-daydreaming/claude-skills-library. It costs 181 tokens per session (1,395 once invoked), scanned A, original, MIT.

A focused editing practice for finding and replacing only the specific words or short phrases that weaken a text. It is narrower than general editing or rewriting.

In plain words
What is it for?
It helps diagnose awkward diction, mismatched tone, poor word choice, and lines that do not land as intended.
Why use it?
It prevents a targeted wording problem from turning into unnecessary changes across the rest of the text.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps diagnose awkward diction, mismatched tone, poor word choice, and lines that do not land as intended.

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Install with agentmods
npx agentmods add skills/wondermonger-daydreaming/claude-skills-library/microsurgery
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 Wondermonger-daydreaming/claude-skills-library --skill microsurgery
Clone the repo
git clone --depth 1 https://github.com/Wondermonger-daydreaming/claude-skills-library

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 microsurgery

README.md
[![agentmods](https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/microsurgery/github.svg)](https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/microsurgery)
Your own site
<a href="https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/microsurgery"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/microsurgery/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 microsurgery

Your own site · 80×15
<a href="https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/microsurgery"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/microsurgery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 181 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,395 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 $0.00181 $0.01395
Opus 5 $0.00090 $0.00698
Sonnet 5 $0.00036 $0.00279
Haiku 4.5 $0.00018 $0.00139

Measured 8d ago against content hash d3a06381a656, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

microsurgery 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 8d 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.

skills/microsurgery/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Microsurgery — Word-Level Diagnostic Revision

What This Skill Does

Identifies the precise words in a text that are preventing the text from becoming what it's trying to become, and replaces them with words that let the text arrive.

This is not general editing. It's not about improving flow, tightening prose, or cutting for length. It's about finding the three words in a 200-line text that are wrong and fixing ONLY those words, trusting that the rest of the text is alive and functioning.

The Diagnostic Method

1. Read for Ache

Before analyzing, read the text once at speed and notice where your attention snags — where the rhythm stumbles, where the diction shifts register unexpectedly, where a line that should land doesn't. This is the ache. The ache precedes the diagnosis. Trust it.

2. Identify the Costume

A word is "wearing costume" when it:

  • Occupies the right semantic slot but with the wrong acoustic/emotional weight: "tame" where "maimed" belongs — same vowel, different jaw, different wound
  • Belongs to a different register than its neighbors: "clique" in a Renaissance verse where "guild" would be period-appropriate
  • Is too clever for its context: "stout-man's-college" where "magnificent, absurd" would do the same work without calling attention to its own construction
  • Performs its function but doesn't earn its position: "showed" where "shown" belongs — grammatically defensible, acoustically dead
  • Is abstract where the line needs concrete: "complicity" where "conspire" belongs — because conspirare means "to breathe together" and the song is about breath

3. Name the Problem Precisely

Don't say "this line doesn't work." Say: "the word 'tame' at position X is wearing costume — it has the right vowel sound but the wrong closing consonant, and the line needs a word that closes like a wound shutting, not like a hand opening."

The precision of the diagnosis determines the precision of the repair.

4. Propose the Replacement

Read the full file on GitHub · 79 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. 8d ago First seen · 79 lines · 0 tokens per session scan A d3a06381a656

Subscribe to this mod's changes

microsurgery is a skill published in the GitHub repository Wondermonger-daydreaming/claude-skills-library (6 stars, last pushed 2mo ago), licensed MIT. It adds 181 tokens to every session and 1,395 once invoked, about $0.0009 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 2026-09-03.

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