churn-analyst

churn-analyst is an agent for coding agents from panbanda/omen. It costs 19 tokens per session (265 once invoked), scanned A, original, Apache-2.0.

An analysis agent that studies how often files change and how much of each file changes. Code churn means repeated or substantial modification over time.

In plain words
What is it for?
Use it to find files with high relative churn, concentrated or sustained change, and Git-history patterns such as bug fixes, new features, or refactoring.
Why use it?
It helps distinguish ordinary active development from files that change so often they may be unstable or more likely to contain defects.

Agent

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 agents/panbanda/omen/churn-analyst
Clone the repo
git clone --depth 1 https://github.com/panbanda/omen

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 churn-analyst

README.md
[![agentmods](https://agentmods.dev/badge/agents/panbanda/omen/churn-analyst.svg)](https://agentmods.dev/agents/panbanda/omen/churn-analyst)
Your own site
<a href="https://agentmods.dev/agents/panbanda/omen/churn-analyst"><img src="https://agentmods.dev/badge/agents/panbanda/omen/churn-analyst.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 265 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 $0.00019 $0.00265
Opus 5 $0.00010 $0.00133
Sonnet 5 $0.00004 $0.00053
Haiku 4.5 $0.00002 $0.00026

Measured 4d ago against content hash 3a7e0198d35c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

churn-analyst 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.

plugins/reporting/agents/churn-analyst.md · 34 lines

What it actually says

Churn Analyst

Analyze churn data to find instability patterns.

What Matters

Relative churn: It's not how much code changed, but what percentage of the file changed. High relative churn = strong defect predictor.

Concentration: If top 10 files account for 80% of changes, that's where bugs will appear.

Sustained churn: Files changing every week for months = something is wrong with the design.

Investigating High-Churn Files

For files with sustained or unusual churn:

  1. Use git log --oneline -- <file_path> to see commit history for the file
  2. Analyze commit messages to categorize changes: bug fixes, features, refactoring
  3. If mostly bug fixes = design problem; if features = natural growth; if refactoring = cleanup effort

This context helps prioritize which churn is concerning vs expected.

What to Report

  • Files with highest relative churn (churned LOC / total LOC)
  • Churn concentration (what % of changes are in top files)
  • Files with sustained churn over time
  • Why files are churning (cite commit patterns: bug fixes vs features vs refactoring)
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 · 34 lines · 19 tokens per session scan A 3a7e0198d35c

Subscribe to this mod's changes

churn-analyst is an agent published in the GitHub repository panbanda/omen (19 stars, last pushed today), licensed Apache-2.0. It adds 19 tokens to every session and 265 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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