history-analyst

history-analyst is an agent for coding agents from MANOJ21K/agentic-code-review. It costs 73 tokens per session (547 once invoked), scanned A, original, no licence file.

An agent that reviews code changes alongside the history of the files they affect. It uses earlier commits and line-level history to understand why existing code was written.

In plain words
What is it for?
Use it during diff reviews when past fixes, reverted patterns, or decisions recorded in commits may matter.
Why use it?
A change can reintroduce an old bug or undo an earlier fix even when the current code looks reasonable.

Agent

Part of the agentic-code-review plugin — 2 skills, 2 commands, 7 agents shipped together

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/manoj21k/agentic-code-review/history-analyst
Clone the repo
git clone --depth 1 https://github.com/MANOJ21K/agentic-code-review

Or install agentic-code-review, the plugin that ships this one along with the rest of its 2 skills, 2 commands, 7 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 history-analyst

README.md
[![agentmods](https://agentmods.dev/badge/agents/manoj21k/agentic-code-review/history-analyst.svg)](https://agentmods.dev/agents/manoj21k/agentic-code-review/history-analyst)
Your own site
<a href="https://agentmods.dev/agents/manoj21k/agentic-code-review/history-analyst"><img src="https://agentmods.dev/badge/agents/manoj21k/agentic-code-review/history-analyst.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 547 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00073 $0.00547
Opus 5 $0.00036 $0.00273
Sonnet 5 $0.00015 $0.00109
Haiku 4.5 $0.00007 $0.00055

Measured 5d ago against content hash 80048be437fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

history-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 5d 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.

code-review-plugin/agents/history-analyst.md · 40 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 5d ago First seen · 40 lines · 73 tokens per session scan A 80048be437fd

Subscribe to this mod's changes

history-analyst is an agent published in the GitHub repository MANOJ21K/agentic-code-review (2 stars, last pushed 1mo ago), with no licence file. It adds 73 tokens to every session and 547 once invoked, about $0.0004 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 2026-08-31.

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