long-agent

long-agent is a skill for Claude Code, Codex from johnlindquist/claude. It costs 29 tokens per session (1,506 once invoked), scanned B, original, no licence file.

A session-management tool for tasks that run over a long period or involve many steps. It tracks progress and preserves context during extended work.

In plain words
What is it for?
Monitoring progress, maintaining context, and managing multi-step tasks that take a long time.
Why use it?
It reduces the risk of losing track of completed work or important context during a long agent session.

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/johnlindquist/claude/long-agent
Any agent
npx skills add johnlindquist/claude --skill long-agent
Clone the repo
git clone --depth 1 https://github.com/johnlindquist/claude

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 long-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/johnlindquist/claude/long-agent.svg)](https://agentmods.dev/skills/johnlindquist/claude/long-agent)
Your own site
<a href="https://agentmods.dev/skills/johnlindquist/claude/long-agent"><img src="https://agentmods.dev/badge/skills/johnlindquist/claude/long-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,506 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00029 $0.01506
Opus 5 $0.00015 $0.00753
Sonnet 5 $0.00006 $0.00301
Haiku 4.5 $0.00003 $0.00151

Measured 4d ago against content hash 835bf084c8b7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

long-agent scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

cat ~/.claude/sessions/SESSION_ID.md
skills/long-agent/SKILL.md · 334 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. 4d ago First seen · 334 lines · 29 tokens per session scan B 835bf084c8b7

Subscribe to this mod's changes

long-agent is a skill published in the GitHub repository johnlindquist/claude (25 stars, last pushed 8mo ago), with no licence file. It adds 29 tokens to every session and 1,506 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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