vaccinate

vaccinate is a skill for Claude Code from pedrohcgs/claude-code-my-workflow. It costs 141 tokens per session (1,964 once invoked), scanned A, original, MIT.

A quality check for other checks. It plants known defects in a copy of a real artifact, runs the checker, and records whether it finds the defects without flagging clean material.

In plain words
What is it for?
Use it to qualify review agents, reproducibility gates, and other automated checks by measuring missed defects and false alarms.
Why use it?
It shows whether a check actually catches the failures it claims to catch before you rely on its result for a review, release, or submission.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to qualify review agents, reproducibility gates, and other automated checks by measuring missed defects and false alarms.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pedrohcgs/claude-code-my-workflow/vaccinate
About the project

claude-code-my-workflow is a forkable setup for using Claude Code to produce and review academic papers, slides, data analyses, and replication packages. Researchers use its agents, skills, rules, hooks, and quality checks to coordinate these tasks and verify their results. The catalogue entries define the reusable workflow components for Claude Code.

pedrohcgs/claude-code-my-workflow · 1,570 stars · on GitHub · psantanna.com

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 pedrohcgs/claude-code-my-workflow --skill vaccinate
Clone the repo
git clone --depth 1 https://github.com/pedrohcgs/claude-code-my-workflow

Made for: Claude Code.

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 vaccinate

README.md
[![agentmods](https://agentmods.dev/badge/skills/pedrohcgs/claude-code-my-workflow/vaccinate/github.svg)](https://agentmods.dev/skills/pedrohcgs/claude-code-my-workflow/vaccinate)
Your own site
<a href="https://agentmods.dev/skills/pedrohcgs/claude-code-my-workflow/vaccinate"><img src="https://agentmods.dev/badge/skills/pedrohcgs/claude-code-my-workflow/vaccinate/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 vaccinate

Your own site · 80×15
<a href="https://agentmods.dev/skills/pedrohcgs/claude-code-my-workflow/vaccinate"><img src="https://agentmods.dev/badge/skills/pedrohcgs/claude-code-my-workflow/vaccinate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,964 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 $0.00141 $0.01964
Opus 5 $0.00071 $0.00982
Sonnet 5 $0.00028 $0.00393
Haiku 4.5 $0.00014 $0.00196

Measured 7d ago against content hash 5432c10cd24b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

vaccinate 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 7d 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.

.claude/skills/vaccinate/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vaccinate — grade the grader

Twenty bugs were once planted in a working codebase and the review agents were asked to check it again. They reported everything was fine. Recall: 0/20.

A vaccine is a small, controlled dose of error that strengthens the whole system. This skill administers one.

The rule it enforces: an unqualified check is not weak evidence — it is none.

When to run it

  • Before a referee simulation, reproducibility gate, or review agent is used to make a decision that matters (a submission, a release, a deposit).
  • After changing a checker — a modified gate is unqualified until re-measured.
  • On a schedule for gates that guard load-bearing claims. Detection decays as artifacts drift.

Protocol

1. Name the failure

State the defect class the check is supposed to catch. "Catches problems" is not a class. "Detects a coefficient in the text that no longer matches its table" is.

2. Build the seeded set + a clean control

Work on a copy, never the live artifact. Produce:

  • N seeded variants, one defect each, drawn from references/defect-library.md.
  • At least one clean control — an unmodified copy.

The control is not optional. Without it you measure recall and call it accuracy.

Verify each seed actually violates something. A seed that the artifact already permits creates no defect, and the checker correctly reporting "pass" will look like a broken gate. This is the most common way a qualification run produces a false alarm about itself.

3. Run the checker blind

Run the check or agent against each variant in a fresh context, one variant per run. It must not know which variant it has, how many defects exist, or that a qualification is underway. For an AI reviewer, spawn via the Agent tool with context: fork.

4. Score

Metric Definition
Recall seeded defects correctly identified / seeded defects planted
False-positive rate findings on the clean control that are factually false / total findings on the control
Localization did it name the right location, or just report unease?
Baseline delta recall of a simpler alternative (a grep, a diff, a one-line assertion)

Read the full file on GitHub · 170 lines

Files

What ships with it

6 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. 7d ago First seen · 170 lines · 141 tokens per session scan A 5432c10cd24b

Subscribe to this mod's changes

vaccinate is a skill published in the GitHub repository pedrohcgs/claude-code-my-workflow (1,570 stars, last pushed 16d ago), licensed MIT. It adds 141 tokens to every session and 1,964 once invoked, about $0.0007 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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