s1a SKILL.md skillA
s1a from thinkflowlab/system1-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add thinkflowlab/system1-agents/s1a@git:20261007.3966442Pins git:20261007.3966442 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- thinkflowlab/system1-agents
- Path
skills/s1a/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261007.3966442, committed Oct 7, 2026
- First version recorded
- Sep 22, 2026
- Size
- 4,684 bytes
- Repository stars
- 164
- License
- Apache-2.0
Delegate a page task with enumerable controls, a game or a quiz to S1A, an openJiuwen agent with a System 1 decision model in its model slot, through the s1a command; or ask the decision model for one fast selection over options you enumerate. Use for click-through web tasks with no arithmetic, and for routing, ranking or gating over a fixed option list. Not for a plain fetch (use curl), arithmetic, constraint puzzles or free-text negotiation.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# s1a
S1A runs openJiuwen agents with a System 1 decision model in the model slot: TypeSafe Jev over HTTP by default, Laya or
Cua-S1 in process. About 400 ms per request, one selection over the options the page or the game enumerates, a
probability per option. The command is `s1a`,
run from a checkout of https://github.com/ThinkFlowLab/system1-agents: `uv run --project <checkout> s1a ...`. Inside
the Claude Code plugin the checkout is `${CLAUDE_PLUGIN_ROOT}`. `python -m s1a` from the checkout is the
same command.
## When to delegate
- A web task that is a sequence of selections over visible controls: search forms, filters, date pickers, result
lists, quizzes. The values to type come from the task text.
- A game or environment that enumerates its legal moves each step and reports a score.
- One selection over options you already hold, where a probability per option helps: routing, ranking, gating.
Not for: a plain page fetch (use curl), arithmetic, constraint puzzles, search over move trees, free-text
generation, or a task that needs a value the page never shows.
## Commands
```bash
s1a list
…Read the whole file at its exact version.
How to install
mdr add thinkflowlab/system1-agents/s1a@sha256:e4794b190fbc2734The line at the top of this page pins the label git:20261007.3966442, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ppmhimh63id37klg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 22, 2026 and Oct 7, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261007.3966442 latest | 2026-10-07 | 3966442 | 4,684 B | A | view · diff |
| git:20260923.d2024a1 | 2026-09-23 | d2024a1 | 4,491 B | A | view · diff |
| git:20260922.c79697f | 2026-09-22 | c79697f | 4,480 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4684 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
thinkflowlab/system1-agents · 164 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ppmhimh63id37klg GET https://markdownregistry.com/api/v1/resolve?ref=thinkflowlab/system1-agents/s1a GET https://markdownregistry.com/api/v1/blob/e4794b190fbc27342b22bbadd663a7d2362d07f6eab717d2030cf300b4bf51f1
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.