Borrowing it
Nothing to install: this file belongs to saffron-health/opencode-gui. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/saffron-health/opencode-gui/main/.agents/skills/dev-command/SKILL.mdgit clone --depth 1 https://github.com/saffron-health/opencode-guiWrote 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/saffron-health/opencode-gui/dev-command)<a href="https://agentmods.dev/skills/saffron-health/opencode-gui/dev-command"><img src="https://agentmods.dev/badge/skills/saffron-health/opencode-gui/dev-command/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.
<a href="https://agentmods.dev/skills/saffron-health/opencode-gui/dev-command"><img src="https://agentmods.dev/badge/skills/saffron-health/opencode-gui/dev-command.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00030 | $0.00851 |
| Opus 5.5 | $0.00012 | $0.00340 |
| Sonnet 5.5 | $0.00006 | $0.00170 |
| Haiku 4.5 | $0.00003 | $0.00085 |
Grade A, and why
dev-command 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 2mo 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 — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dev Command
Launch and interact with the VSCode extension using pnpm dev.
Commands
pnpm dev # Launch VSCode in background tmux session
pnpm dev exec "<code>" # Execute JS in the webview (frame/page/browser available)
pnpm dev snapshot # Screenshot the VSCode window
pnpm dev stop # Stop the session
Exec environment
The exec command provides three objects:
frame— the webviewactive-frame(SolidJS UI). Use this for most interactions.page— the top-level VSCode Electron page. Use for screenshots or VSCode-level actions.browser— the Playwright Browser instance.
Common selectors
All selectors below target elements inside frame.
Input
# Type a message
pnpm dev exec "await frame.locator('[contenteditable]').pressSequentially('hello world')"
# Submit (Cmd+Enter)
pnpm dev exec "await frame.locator('[contenteditable]').press('Meta+Enter')"
# Clear and retype
pnpm dev exec "await frame.locator('[contenteditable]').fill(''); await frame.locator('[contenteditable]').pressSequentially('new text')"
Buttons
# Stop generation
pnpm dev exec "await frame.locator('.shortcut-button--stop').click()"
# Submit button
pnpm dev exec "await frame.locator('.shortcut-button--secondary').click()"
# New session
pnpm dev exec "await frame.locator('.new-session-button').click()"
# Session switcher
pnpm dev exec "await frame.locator('.session-switcher-button').click()"
Permissions
# Allow once
pnpm dev exec "await frame.locator('.permission-button--primary').click()"
# Allow always
pnpm dev exec "await frame.locator('button[aria-label=\"Allow always\"]').click()"
# Reject
pnpm dev exec "await frame.locator('button[aria-label=\"Reject\"]').click()"
# Allow all visible permissions
pnpm dev exec "const btns = await frame.locator('.permission-button--primary').all(); for (const b of btns) await b.click()"
Messages
# Get all message texts
pnpm dev exec "const msgs = await frame.locator('.message-text').allTextContents(); return msgs"
# Get last assistant message
pnpm dev exec "const msgs = await frame.locator('.message--assistant .message-text').allTextContents(); return msgs[msgs.length - 1]"
# Wait for assistant response
pnpm dev exec "await frame.locator('.message--assistant').last().waitFor()"
# Check if thinking
pnpm dev exec "return await frame.locator('.loading-indicator').isVisible()"
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.
- 2mo ago First seen · 111 lines · 30 tokens per session scan A a90f6269d606
dev-command is a skill published in the GitHub repository saffron-health/opencode-gui (58 stars, last pushed 1mo ago), licensed MIT. It adds 30 tokens to every session and 851 once invoked, about $0.0001 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 2026-08-30.
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