Claude Skill MartBrowse skillsWhat is a Skill?
Back to list

Ultrawork

Typing 'ultrawork' or 'ulw' flips the agent into a maximum-precision mode that demands failing-first proofs, real-surface QA evidence, and cleanup receipts before it can claim done.

Dev & CodingAdvanced67,5315,507AI score 7/10Last updated: Aug 9, 2026

What it does

When a prompt contains ultrawork or ulw, this directive is injected into the conversation and reshapes how the agent works — evidence over narration:

  • One-time tier triage (LIGHT/HEAVY): new modules, auth/security, external integrations, DB migrations, concurrency, cross-domain refactors force HEAVY; you may ratchet up mid-task but never down.
  • Binding goal registration: create_goal records the deliverable, tier justification, success criteria with literal commands and binary PASS/FAIL observables, and an explicit "when to stop" line.
  • Durable notepad: an append-only mktemp markdown file holding the plan, file:line findings, RED/GREEN captures, and evidence paths so state survives context compaction.
  • PIN → RED → GREEN → SURFACE → CLEAN loop: capture the failing proof before any production code, make the smallest change, re-prove on the real surface (curl, Chrome/agent-browser, xterm.js web terminal, OS-level GUI automation), then tear down every spawned server, tmux session, container, or temp dir and log a cleanup receipt.
  • Parallel + delegation discipline: batch independent lookups into one eval cell; fan out task subagents or a team_create team only when write scopes are disjoint.
  • Triggered verification gate: reviewers (momus/metis) are summoned only when a plan file exists and the tier is HEAVY or the user demanded rigorous review; otherwise a recorded self-review.

Who it's for

  • Developers tired of "should work" claims with no captured proof
  • Teams handing high-blast-radius changes (auth, payments, schema migrations) to an agent
  • Advanced oh-my-openagent / omo-senpi users standardizing evidence-based QA and multi-agent delegation

Examples

  1. ulw add email format validation to the login API → write the failing test (RED), implement minimally, capture curl -i showing 400 status + body, log evidence paths and an atomic commit.
  2. ultrawork build the payment webhook integration → auto-classified HEAVY: 3+ criteria (happy, boundary, adjacent regression), per-criterion scenario and evidence, plus reviewer approval if a plan file exists.
  3. ulw fix the broken colors and CJK width in the TUI → prove it with a screenshot of a real xterm.js-rendered terminal instead of tmux capture-pane, then record the pty/tmux teardown receipt.

· · · Install guide · · ·

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the packages/omo-senpi/skills/ultrawork folder from the GitHub repo code-yeongyu/oh-my-openagent into my ~/.claude/skills/code-yeongyu-ultrawork/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/code-yeongyu/oh-my-openagent.git && mkdir -p ~/.claude/skills && cp -r oh-my-openagent/packages/omo-senpi/skills/ultrawork ~/.claude/skills/

This is a third-party skill. Check the source repository before installing.

  1. Open a terminal and clone the repo: git clone https://github.com/code-yeongyu/oh-my-openagent.git
  2. Create the skills folder if needed: mkdir -p ~/.claude/skills
  3. Copy the skill in: cp -r oh-my-openagent/packages/omo-senpi/skills/ultrawork ~/.claude/skills/
  4. Confirm ~/.claude/skills/ultrawork/SKILL.md exists.
  5. Restart Claude Code and add ulw or ultrawork to any request. You'll know it loaded when the first line of the reply is ULTRAWORK MODE ENABLED!.
  6. (Optional) This directive targets the omo-senpi harness. If your setup lacks create_goal, task, team_create, todo, or eval, rewrite those paragraphs to use the notepad/checklist instead. The published file is truncated inside the Stop rules section, so finish that sentence yourself.
View source on GitHubLicense: NOASSERTION