preservation-verifier

preservation-verifier is a skill for Codex from conorbronsdon/avoid-ai-writing. It costs 54 tokens per session (933 once invoked), scanned A, original, MIT.

A verification skill that compares an original version with a rewritten or edited version to check whether protected content was preserved.

In plain words
What is it for?
Use it after rewriting or editing files to produce a pass, review, or fail result and identify exact repair targets.
Why use it?
It catches lost or changed code, links, numbers, headings, tables, quotes, and other required material after an edit.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it after rewriting or editing files to produce a pass, review, or fail result and identify exact repair targets.

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Install with agentmods
npx agentmods add skills/conorbronsdon/avoid-ai-writing/preservation-verifier
About the project

avoid-ai-writing is a portable writing skill that detects common patterns associated with AI-generated prose and can rewrite them or make targeted edits to prose files. It is for users of Claude Code, OpenClaw, Hermes, and other compatible coding agents who want text to sound more like human writing. The catalogue entries are the skill's rule and instruction components.

conorbronsdon/avoid-ai-writing · 4,192 stars · on GitHub · chainofthought.show

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 conorbronsdon/avoid-ai-writing --skill preservation-verifier
Clone the repo
git clone --depth 1 https://github.com/conorbronsdon/avoid-ai-writing

Made for: 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 preservation-verifier

README.md
[![agentmods](https://agentmods.dev/badge/skills/conorbronsdon/avoid-ai-writing/preservation-verifier/github.svg)](https://agentmods.dev/skills/conorbronsdon/avoid-ai-writing/preservation-verifier)
Your own site
<a href="https://agentmods.dev/skills/conorbronsdon/avoid-ai-writing/preservation-verifier"><img src="https://agentmods.dev/badge/skills/conorbronsdon/avoid-ai-writing/preservation-verifier/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 preservation-verifier

Your own site · 80×15
<a href="https://agentmods.dev/skills/conorbronsdon/avoid-ai-writing/preservation-verifier"><img src="https://agentmods.dev/badge/skills/conorbronsdon/avoid-ai-writing/preservation-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 933 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 $0.00054 $0.00933
Opus 5 $0.00027 $0.00466
Sonnet 5 $0.00011 $0.00187
Haiku 4.5 $0.00005 $0.00093

Measured 3d ago against content hash 7782920a4367, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

preservation-verifier 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 3d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/patterns.js, scripts/validate.js), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/preservation-verifier/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Preservation Verifier

Verify that a rewrite or file edit kept the content the original ../avoid-ai-writing/SKILL.md says to protect.

For cross-Skill work, follow ../avoid-ai-writing-router/references/handoff-contract.md and ../avoid-ai-writing-router/references/skill-graph.json.

Connection contract

Incoming

Accept before/after verification from:

  • avoid-ai-writing-router via ROUTE when the user directly supplies before and after material.
  • voice-preserving-rewriter via VERIFY after returned-text rewriting.
  • file-edit-in-place via VERIFY after an authorized named-file mutation.

Require both original and current versions. If either is unavailable, return control to the router rather than inventing a comparison.

Produce

Update the handoff envelope with:

  • execution_evidence.verifier: executed only if the bundled validator ran, otherwise model_only.
  • verification_summary.status: PASS, REVIEW, or FAIL.
  • blocking errors and warnings.
  • exact repair target when repair is possible.

A FAIL is a blocking workflow result. The rewrite/edit stage is not complete merely because text was produced or a file write succeeded.

Outgoing

  • REPAIR to voice-preserving-rewriter when returned text failed preservation.
  • REPAIR to file-edit-in-place when a named file failed preservation.
  • RECHECK to ai-writing-detector only when convergence or a residual audit was part of the user's request.
  • Stop on PASS unless another user-requested stage remains.
  • Stop and report on a second verification failure. Do not start another repair loop.

Architecture and implementation lenses

Apply both encoded lenses from ../avoid-ai-writing-router/references/agency-role-lenses.md:

  • agency-software-architect: verification is a boundary gate with explicit ownership and bounded repair cycles.
  • agency-senior-developer: execution claims require actual command evidence, errors propagate, and before/after state remains attributable to the correct target.

Read the full file on GitHub · 104 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. 3d ago First seen · 104 lines · 54 tokens per session scan A 7782920a4367

Subscribe to this mod's changes

preservation-verifier is a skill published in the GitHub repository conorbronsdon/avoid-ai-writing (4,192 stars, last pushed 2d ago), licensed MIT. It adds 54 tokens to every session and 933 once invoked, about $0.0003 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 2026-09-05.

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