control-ui

control-ui is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 40 tokens per session (727 once invoked), scanned A, a copy of control-ui, Apache-2.0.

A verification tool for browser or Electron interfaces that captures screenshots, browser-console output, and page structure before and after a behavior is tested.

In plain words
What is it for?
It helps reproduce or verify behavior in a local web app or Electron app and collect before-and-after evidence in one directory.
Why use it?
It gives concrete evidence of a user-interface change or bug while ensuring the locally started app and browser processes are cleaned up.

Skill for Claude CodeCodex

Part of the odin-code-advanced plugin — 50 skills shipped together

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.

agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/control-ui
Any agent
npx skills add OutlineDriven/odin-claude-plugin --skill control-ui
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-code-advanced, the plugin that ships this one along with the rest of its 50 skills.

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 control-ui

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/control-ui.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/control-ui)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/control-ui"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/control-ui.svg" alt="Measured on agentmods" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 727 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00040 $0.00727
Opus 5 $0.00020 $0.00364
Sonnet 5 $0.00008 $0.00145
Haiku 4.5 $0.00004 $0.00073

Measured yesterday against content hash ee73f15c1553, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

control-ui 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 yesterday.

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.

Origin

This is a copy

100% identical to control-ui — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/odin-code-advanced/skills/control-ui/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Control UI

Contract

Field Bound contract
Trigger Verify or reproduce browser/Electron UI behavior.
Authority Write only named local evidence artifacts under the working directory and discard spawned processes on exit. Rollback: delete the evidence directory and kill any spawned process.
Side effect Runs the app or a browser locally and captures screenshots, console logs, and DOM state into one named evidence directory.
Done Before/after UI evidence exists in the named directory and no spawned app or browser process remains.

Inputs

Required: a UI target that is a local app command, a local URL, or an Electron entry, and the behavior to verify or reproduce.

Optional: a viewport size, an authentication state file, and an evidence directory name (defaults to a timestamped folder under the working directory).

Procedure

  1. Confirm that the target is a local app command, local URL, or Electron entry supplied by the human. Refuse remote URLs or targets requiring credentials the human did not provide. Done when: the target is classified as local app, local URL, or Electron entry, and any remote or credential-bearing target is refused.
  2. Create or reuse the named evidence directory under the working directory. Done when: the evidence directory exists under the working directory.
  3. Capture the before state: launch the app or browser, navigate to the target, and record the viewport, screenshot, console log, and relevant DOM state into the evidence directory as before.*. Done when: before.* files (viewport, screenshot, console log, DOM state) are written to the evidence directory.
  4. Perform the behavior being verified (click, input, or navigation), or follow the reported reproduction steps. Record each step taken. Done when: every behavior step taken is recorded.
  5. Capture the after state: record the screenshot, console log, and DOM state into the evidence directory as after.*. Done when: after.* files (screenshot, console log, DOM state) are written to the evidence directory.
  6. Compare before and after evidence against the expected behavior. Record pass, fail, or mismatch with the differing evidence file names. Done when: a pass, fail, or mismatch classification is recorded citing the differing evidence file names.
  7. Terminate every spawned app or browser process and confirm none remain. Done when: no spawned app or browser process remains.

Read the full file on GitHub · 42 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday First seen · 42 lines · 40 tokens per session scan A ee73f15c1553

Subscribe to this mod's changes

control-ui is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed today), licensed Apache-2.0. It adds 40 tokens to every session and 727 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to control-ui, differing in 0 lines, and is treated as a copy.

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