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cpv-deterministic-codemod

cpv-deterministic-codemod is a skill for Claude Code from Emasoft/claude-plugins-validation. It costs 80 tokens per session (977 once invoked), scanned A, original, MIT.

A command-line tool for applying predictable text edits across many plugin files. A codemod is a program that makes the same kind of code or document change repeatedly.

In plain words
What is it for?
Use it to convert backtick paths into Markdown links, add table-of-contents or standard-section stubs, remove duplicate blank lines, wrap placeholder paths, update skip lists, and apply several such fixes together.
Why use it?
It handles mechanical fixes consistently without using an AI model for every file. Dry runs and backups let developers review or recover changes before relying on them.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the claude-plugins-validation plugin — 52 skills, 14 commands, 14 agents shipped together

not rated 4repo 3d ago A scan 80 tokens original MIT

Good fit Use it to convert backtick paths into Markdown links, add table-of-contents or standard-section stubs, remove duplicate blank lines, wrap placeholder paths, update skip lists, and apply several such fixes together.

Compare 6 skills from other repositories ↓
View source ↗ Emasoft/claude-plugins-validation
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add Emasoft/claude-plugins-validation
Claude Code
/plugin install claude-plugins-validation

Made for: Claude Code.

Or install claude-plugins-validation, the plugin that ships this one along with the rest of its 52 skills, 14 commands, 14 agents.

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 cpv-deterministic-codemod

README.md
[![agentmods](https://agentmods.dev/badge/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod/github.svg)](https://agentmods.dev/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod)
Your own site
<a href="https://agentmods.dev/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod"><img src="https://agentmods.dev/badge/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod/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 cpv-deterministic-codemod

Your own site · 80×15
<a href="https://agentmods.dev/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod"><img src="https://agentmods.dev/badge/skills/emasoft/claude-plugins-validation/cpv-deterministic-codemod.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 977 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 $0.00080 $0.00977
Opus 5.5 $0.00032 $0.00391
Sonnet 5.5 $0.00016 $0.00195
Haiku 4.5 $0.00008 $0.00098

Measured 1mo ago against content hash 0e5213c36f72, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cpv-deterministic-codemod 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 1mo 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/cpv-deterministic-codemod/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

cpv-deterministic-codemod

Overview

Bulk-applies the inverse of CPV's detection regexes — read-only audit becomes read-write fix at zero LLM cost. Designed for high-volume mechanical fixes where the cpv-plugin-fixer-agent agent is the wrong tool because the work is line-local and predictable. Addresses GitHub issue #17 and the high-volume Categories C and D of issue #16. Loaded dynamically via cpv-the-skills-menu, reached via the Fix → Deterministic codemod menu branch.

See subcommands for detail.

Subcommand table · Safety contract · Recommended workflow · When the codemod is the WRONG tool · Recovery

Prerequisites

  • uv on PATH
  • Target plugin path
  • (Optional) git for reviewing diffs before commit

Instructions

  1. Choose a subcommand: backtick-to-link, add-toc, wrap-placeholder-paths, add-standard-sections, dedup-trailing-blanks, external-skip-list, or all.
  2. Run dry-run first (default — no --apply). Inspect the diff output.
  3. Re-run with --apply to write. A per-file backup is created under .cpv-codemod-backup/<timestamp>/<rel-path>.
  4. Re-validate via cpv-plugin-validation-skill and confirm finding counts dropped.
  5. If something went wrong, restore from .cpv-codemod-backup/<timestamp>/.

Copy this checklist and track your progress:

  • Subcommand chosen
  • Dry-run output reviewed
  • --apply run (backup created)
  • validate_plugin re-run, counts dropped
  • Backup deleted only after commit

Output

  • Modified .md files at the chosen plugin path.
  • Per-file backups under .cpv-codemod-backup/<timestamp>/<rel-path> (atomic, mirrors the plugin layout).
  • A unified-diff print of every change.

Error Handling

Error Resolution
Unknown subcommand See the subcommands reference (linked above in Overview)
No diff produced Codemod already idempotent on this tree
Permission denied on write Check file permissions, or run from a writable workspace
Backup dir already exists Re-runs create new timestamped dirs — old ones are kept until manual cleanup

Read the full file on GitHub · 80 lines

Files

What ships with it

1 file 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. 1mo ago First seen · 80 lines · 80 tokens per session scan A 0e5213c36f72

Subscribe to this mod's changes

cpv-deterministic-codemod is a skill published in the GitHub repository Emasoft/claude-plugins-validation (4 stars, last pushed 3d ago), licensed MIT. It adds 80 tokens to every session and 977 once invoked, about $0.0003 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 2026-08-31.

Writing and docs
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