What is FM-Agent-Run-Incremental?

A skill for running FM-Agent, a project-analysis tool, again after changes, using only the parts affected by earlier analysis. It accepts an optional message explaining what changed or should be checked.

Use it after code changes when FM-Agent has analyzed the project before. It helps verify an updated project incrementally, including an optional description of the work to review.

It avoids repeating a full analysis when a project already has analysis results. This makes follow-up checks focus on recent changes and the user's stated intent.

FM-Agent-Run-Incremental — Skill for Claude Code and Codex by fmagent-project: A skill for running FM-Agent, a project-analysis tool, again…

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/fmagent-project/fm-agent-plugin/run-incremental

Any agent

npx skills add fmagent-project/FM-Agent-Plugin --skill run-incremental

Clone the repo

git clone --depth 1 https://github.com/fmagent-project/FM-Agent-Plugin

Made for: Claude Code, Codex.

Or install fm-agent-plugin, the plugin that ships this one along with the rest of its 9 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/fmagent-project/fm-agent-plugin/run-incremental.svg)](https://agentmods.dev/skills/fmagent-project/fm-agent-plugin/run-incremental)

Your own site

<a href="https://agentmods.dev/skills/fmagent-project/fm-agent-plugin/run-incremental"><img src="https://agentmods.dev/badge/skills/fmagent-project/fm-agent-plugin/run-incremental.svg" alt="Measured on agentmods" height="20"></a>

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,558 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.

Model	Per session	Once invoked
Fable 5	$0.00045	$0.02558
Opus 5	$0.00023	$0.01279
Sonnet 5	$0.00009	$0.00512
Haiku 4.5	$0.00005	$0.00256

Measured 4d ago against content hash 9a23ece155f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

FM-Agent-Run-Incremental 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/fm-agent-plugin/skills/run-incremental/SKILL.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Execute incremental FM-Agent analysis for the current project.

Overview

This skill runs FM-Agent from the plugin data directory $HOME/.fm-agent-plugin/FM-Agent against the current project directory (./) in incremental mode.

Arguments

This skill takes one required argument and one optional argument:

--incremental: run incremental analysis
<intent-msg>: optional user-provided intent message describing what changed or what should be analyzed

The skill always generates the intent file from exported summary files written by fm-agent:export. If <intent-msg> is provided, include it at the beginning of the generated intent file.

Rules:

If --incremental is not supplied, stop and tell the user to run /fm-agent:run-incremental --incremental.
If <intent-msg> is supplied, preserve it as user-provided intent and place it before the exported summaries in the generated intent file.
If multiple extra tokens are supplied after --incremental, treat all of them together as <intent-msg>.

Invocation Modes

This file defines two explicit procedures:

Default direct-user mode: the normal /fm-agent:run-incremental --incremental [<intent-msg>] procedure for direct user invocations. It generates an intent file and launches FM-Agent in the background.
Orchestration mode: a dedicated one-round verification procedure that fm-agent:auto-fix must follow when it needs deterministic incremental verification. It runs synchronously.

Mode selection is by entrypoint, not by implicit runtime caller detection:

Normal fm-agent:run-incremental usage follows default direct-user mode.
fm-agent:auto-fix must follow the orchestration mode section when it needs one incremental verification round.

Prerequisites

/fm-agent:install executed before to have FM-Agent installed in the plugin data directory $HOME/.fm-agent-plugin/FM-Agent/
/fm-agent:config executed before to set up necessary configuration
fm_agent/version.log exists from a prior FM-Agent analysis
fm_agent_plugin/export-<short-commit>-summary.md files exist for every commit after the last analyzed commit through HEAD

Read the full file on GitHub · 228 lines

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.

4d ago First seen · 228 lines · 45 tokens per session scan A 9a23ece155f9

Subscribe to this mod's changes

FM-Agent-Run-Incremental is a skill published in the GitHub repository fmagent-project/FM-Agent-Plugin (2 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 2,558 once invoked, about $0.0002 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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