long-running-work

long-running-work is a skill for Claude Code, Codex from Zfinix/aster. It costs 71 tokens per session (618 once invoked), scanned A, original, Apache-2.0.

A workflow for handling commands that may take minutes or hours, including builds, test suites, benchmarks, data jobs, migrations and servers. It runs long jobs in the background and records results so later work can inspect them.

In plain words
What is it for?
Use it for long-running builds, evaluations, benchmarks, tests, migrations, watchers and servers. It helps organize repeated run, result-checking and fix cycles with named result files.
Why use it?
It prevents long commands from being killed by short foreground time limits and avoids losing important output. It also lets independent work continue while a job runs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it for long-running builds, evaluations, benchmarks, tests, migrations, watchers and servers. It helps organize repeated run, result-checking and fix cycles with named result files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zfinix/aster/long-running-work
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.

Any agent
npx skills add Zfinix/aster --skill long-running-work
Clone the repo
git clone --depth 1 https://github.com/Zfinix/aster

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-running-work

README.md
[![agentmods](https://agentmods.dev/badge/skills/zfinix/aster/long-running-work/github.svg)](https://agentmods.dev/skills/zfinix/aster/long-running-work)
Your own site
<a href="https://agentmods.dev/skills/zfinix/aster/long-running-work"><img src="https://agentmods.dev/badge/skills/zfinix/aster/long-running-work/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.

agentmods 80×15 button for long-running-work

Your own site · 80×15
<a href="https://agentmods.dev/skills/zfinix/aster/long-running-work"><img src="https://agentmods.dev/badge/skills/zfinix/aster/long-running-work.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 618 The whole file, excluding the scripts and references it only reads on demand.
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.
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 5.1 $0.00071 $0.00618
Opus 5.5 $0.00028 $0.00247
Sonnet 5.5 $0.00014 $0.00124
Haiku 4.5 $0.00007 $0.00062

Measured 4d ago against content hash 5dc8d4faec8b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

long-running-work 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.

crates/aster-skills/builtins/internal/long-running-work/SKILL.md · 38 lines

What it actually says

Long-running work

  1. Background anything long. Evals, benchmarks, full builds and test suites, data jobs, servers, watchers: run_command with background:true. It returns a job id at once and the job runs up to 4 hours. A foreground command is killed at its timeout, and a timeout is not a reason to narrow the work when the work is long by nature.
  2. Load the skills before you start, not after it breaks. Read the skills that cover the task (build-triage, verify-before-done, the repo's own) first, and lay the steps out with update_plan when there is more than one. Mark each step as it lands.
  3. Make the run leave evidence. Write results to a file the run owns (results/run3.json, eval.log), not only to stdout: a job keeps just the tail of its output. Name each round so later rounds do not overwrite it.
  4. Work while it runs. Start the job, then do the independent work: edit the next fix, update docs, review the diff, send read-only questions to background sub-agents. Do not edit files the running job reads.
  5. Wait, do not poll. When nothing is left to do, command_job action:wait (up to 600 seconds per call) until it exits. Never call output in a loop, and never sleep in a shell to pass time.
  6. Tell the user where things stand before every long wait. One or two plain sentences: what is running, what changed since the last round, what comes next. Example: "Round 3 is running. Since round 2 the system prompt is down from 91K to 44K characters, and all 727 tests pass."
  7. When it exits, read before you act. The exit message carries the code and last output; read the result file for the real numbers. A non-zero exit goes through build-triage. Compare against the previous round and say what moved.
  8. Close the loop. Fix what the round showed, run the next round the same way, and stop when the goal is met or a round shows no progress. Stop jobs you no longer need with action:stop; never leave one running unexplained at the end of the work.
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 · 38 lines · 0 tokens per session scan A 5dc8d4faec8b

Subscribe to this mod's changes

long-running-work is a skill published in the GitHub repository Zfinix/aster (132 stars, last pushed 4d ago), licensed Apache-2.0. It adds 71 tokens to every session and 618 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-19.

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