SkillNet is infrastructure for finding, creating, evaluating, combining, and coordinating reusable capabilities for AI agents. Agent developers use it as a searchable and installable library of skills and as a system for selecting skills for particular tasks. The catalogue contains skills that can be discovered, installed, or used with SkillNet.
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.
npx agentmods add skills/zjunlp/skillnet/scienceworld-task-focusernpx skills add zjunlp/SkillNet --skill scienceworld-task-focusergit clone --depth 1 https://github.com/zjunlp/SkillNetWrote 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.
[](https://agentmods.dev/skills/zjunlp/skillnet/scienceworld-task-focuser)<a href="https://agentmods.dev/skills/zjunlp/skillnet/scienceworld-task-focuser"><img src="https://agentmods.dev/badge/skills/zjunlp/skillnet/scienceworld-task-focuser.svg" alt="Measured on agentmods" height="20"></a>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 5.1 | $0.00067 | $0.00584 |
| Opus 5 | $0.00034 | $0.00292 |
| Sonnet 5 | $0.00013 | $0.00117 |
| Haiku 4.5 | $0.00007 | $0.00058 |
Grade A, and why
scienceworld-task-focuser 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: scienceworld-task-focuser
Purpose
Formally declare intent to interact with a specific object in the ScienceWorld environment. The focus on action is a required preparatory step that signals to the system which object subsequent actions (use, measure, connect) will target, often unlocking necessary state changes or measurement capabilities.
When to Use
- Before using a measurement tool (e.g., thermometer) on a target object
- Before complex operations such as connecting, mixing, or combining objects
- When a task description explicitly instructs "focus on" an object
- To confirm the correct item is in inventory before proceeding with an action
Workflow
- Identify the target object -- Determine the exact name as it appears in the environment (e.g.,
thermometer,metal fork). - Locate the object -- Use
look aroundorinventoryto confirm the object's location (environment or inventory). - Execute the focus action -- Issue the appropriate command:
- Object in the environment:
focus on <OBJECT_NAME> - Object in inventory:
focus on <OBJECT_NAME> in inventory
- Object in the environment:
- Verify confirmation -- Wait for the system response:
"You focus on the <OBJECT_NAME>."before proceeding to the next step.
Examples
Example 1: Preparing to measure temperature of a metal fork
> focus on thermometer in inventory
You focus on the thermometer.
> focus on metal fork in inventory
You focus on the metal fork.
> use thermometer on metal fork
The thermometer measures a temperature of 23 degrees celsius.
Example 2: Focusing on an environmental object before moving it
> look around
You see: a table, a blue box, a red box, a metal fork (on table).
> focus on metal fork
You focus on the metal fork.
> move metal fork to blue box
You move the metal fork to the blue box.
Important Notes
- This skill does not perform the main action (e.g., measuring). It only prepares for it.
- The
focusaction has no physical effect on the object; it is a declarative meta-action. - Always wait for the confirmation observation before attempting the next step.
- If the object is not found, use
look around,examine, orteleport toto locate it before attempting to focus.
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.
- 3d ago First seen · 61 lines · 67 tokens per session scan A da0965b30326
scienceworld-task-focuser is a skill published in the GitHub repository zjunlp/SkillNet (1,254 stars, last pushed 2d ago), licensed MIT. It adds 67 tokens to every session and 584 once invoked, about $0.0003 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 2026-09-03.
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