A background-task add-on that sends side tasks to separate AI agents while the main conversation remains available. It chooses an AI model based on the task's difficulty and can split suitable work between agents.

Use it for independent or divisible coding and research tasks that can run in the background.

It removes the need to pause the main conversation while another task is being handled.

side-quest — Plugin for Claude Code by trtmn/agent-plugins

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.

Clone the repo

git clone --depth 1 https://github.com/trtmn/agent-plugins

Made for: Claude Code.

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/plugins/trtmn/agent-plugins/side-quest/github.svg)](https://agentmods.dev/plugins/trtmn/agent-plugins/side-quest)

Your own site

<a href="https://agentmods.dev/plugins/trtmn/agent-plugins/side-quest"><img src="https://agentmods.dev/badge/plugins/trtmn/agent-plugins/side-quest/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/trtmn/agent-plugins/side-quest"><img src="https://agentmods.dev/badge/plugins/trtmn/agent-plugins/side-quest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 1 skill, 2 commands, 1 agent cost 293 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

side-quest 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 9d 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/side-quest/.claude-plugin/plugin.json · 6 lines

What it actually says

{
  "name": "side-quest",
  "version": "2.7.0",
  "description": "Launch background subagent(s) to handle a task as a side quest while the main conversation stays free. Use when the user types /side-quest or asks to run a task as a side quest. Rates the task's difficulty (Challenge Rating) to pick the model — haiku for trivial quests, sonnet for standard quests, opus for boss fights — honors a user-named model override, splits decomposable tasks across a party of parallel agents, and reports launch and completion in Dungeons & Dragons style emoji and flavor, always paired with a plain-English summary. Awards D&D 5e XP by Challenge Rating on completion and keeps a persistent XP/level ledger at ~/.claude/side-quest/xp.json. Also fires small per-tool-call XP ticks via a PostToolUse hook (zero token cost, with a humorous Mad-Libs-style reason naming the actual tool used), and syncs the whole XP ledger across every machine you run Claude Code on in real time over MQTT — award or tick on one machine, see it everywhere, with an offline outbox queue so nothing is lost when the broker's unreachable."
}

Contents

What it installs

The manifest is a name and a version. 1 skill, 2 commands, 1 agent travel with it, and installing the plugin installs all of them — 293 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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.

9d ago Changed f68fe56c7408
1mo ago First seen · 6 lines scan A cc845870408a

Subscribe to this mod's changes

side-quest is a plugin published in the GitHub repository trtmn/agent-plugins (2 stars, last pushed 11d ago), licensed Unlicense. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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