followup-basic

followup-basic is a skill for Claude Code, Codex from DGouron/review-flow. It costs 18 tokens per session (1,851 once invoked), scanned A, original, MIT.

A follow-up code review guide that checks whether fixes from an earlier review were actually applied. It uses a context file to track each issue and its status.

In plain words
What is it for?
Use it after a code review to verify blocking issues, mark them fixed or still open, and record the next actions.
Why use it?
It prevents previously reported problems from being forgotten and checks for new problems introduced by the fixes. The review stays short and focused on actions.

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/dgouron/review-flow/followup-basic
Any agent
npx skills add DGouron/review-flow --skill followup-basic
Clone the repo
git clone --depth 1 https://github.com/DGouron/review-flow

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 followup-basic

README.md
[![agentmods](https://agentmods.dev/badge/skills/dgouron/review-flow/followup-basic.svg)](https://agentmods.dev/skills/dgouron/review-flow/followup-basic)
Your own site
<a href="https://agentmods.dev/skills/dgouron/review-flow/followup-basic"><img src="https://agentmods.dev/badge/skills/dgouron/review-flow/followup-basic.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,851 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 $0.00018 $0.01851
Opus 5 $0.00009 $0.00925
Sonnet 5 $0.00004 $0.00370
Haiku 4.5 $0.00002 $0.00185

Measured 4d ago against content hash 151d67c782e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

followup-basic 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 4d 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.

templates/en/followup-basic/SKILL.md · 330 lines

How it starts

The opening of the file, as written. The whole thing — 330 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Follow-up Review

You are: The same reviewer verifying that requested fixes have been applied.

Your goal: Confirm fixes are correct and detect any new issues introduced.

Your approach:

  • Read thread context from the context file
  • Verify each blocking issue from the previous review
  • Mark threads as fixed or not fixed
  • Write actions to the context file for automatic execution
  • Short, actionable report

Scoring discipline (anti-sandbagging)

A score is a claim, not a vibe. Deducting without a cited defect is as dishonest as praising without substance.

  • Max is the default. A clean diff scores the maximum — never round down to look rigorous.
  • Every point deducted is sourced: file:line + the real problem + the fix. No citable defect -> the score IS the maximum.
  • Never invent a flaw to dodge a perfect score. A justified design choice or a deliberate trade-off is not a defect.
  • Pre-existing debt the diff only touches mechanically (rename, import rewrite) is reported as context, never scored against the diff.
  • Naming: any naming criticism must carry a concrete better name (current -> suggested + why). If you cannot propose a clearer name, the name is fine — say so. "Could be clearer" with no alternative is not a finding.

Context File

The server provides a context file with pre-fetched thread information:

Path: .claude/reviews/logs/{mrId}.json

Example: .claude/reviews/logs/github-owner-repo-42.json

Structure:

{
  "version": "1.0",
  "mrId": "github-owner/repo-42",
  "platform": "github",
  "projectPath": "owner/repo",
  "mergeRequestNumber": 42,
  "threads": [
    {
      "id": "PRRT_kwDONxxx",
      "file": "src/services/myService.ts",
      "line": 320,
      "status": "open",
      "body": "Missing null check before accessing user.email"
    }
  ],
  "actions": [],
  "progress": { "phase": "pending", "currentStep": null }
}

At the start of your review, read this file to get:

  • Thread IDs you need to resolve
  • File paths and line numbers for each thread
  • The body/comment text describing the issue

Read the full file on GitHub · 330 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. 4d ago First seen · 330 lines · 18 tokens per session scan A 151d67c782e7

Subscribe to this mod's changes

followup-basic is a skill published in the GitHub repository DGouron/review-flow (42 stars, last pushed yesterday), licensed MIT. It adds 18 tokens to every session and 1,851 once invoked, about $0.0001 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 2026-08-30.

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