Borrowing it
Nothing to install: this file belongs to shapediver/AppBuilderSdk. 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/shapediver/AppBuilderSdk/development/.claude/skills/browser-diagnosis/SKILL.mdgit clone --depth 1 https://github.com/shapediver/AppBuilderSdkWrote 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/shapediver/appbuildersdk/browser-diagnosis)<a href="https://agentmods.dev/skills/shapediver/appbuildersdk/browser-diagnosis"><img src="https://agentmods.dev/badge/skills/shapediver/appbuildersdk/browser-diagnosis/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/shapediver/appbuildersdk/browser-diagnosis"><img src="https://agentmods.dev/badge/skills/shapediver/appbuildersdk/browser-diagnosis.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 | $0.00051 | $0.00527 |
| Opus 5.5 | $0.00020 | $0.00211 |
| Sonnet 5.5 | $0.00010 | $0.00105 |
| Haiku 4.5 | $0.00005 | $0.00053 |
Grade A, and why
browser-diagnosis 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 today.
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.
What it actually says
Browser diagnosis (App Builder)
Dev server and models
BROWSER=none pnpm exec vite --host 127.0.0.1 --port 8080 --strictPort→http://127.0.0.1:8080/?slug=<slug>. Port 3000 is the e2e cross-window fixture server. Slug data is inmodelstorage.local.ts.- The platform token expires hourly; run
pnpm run convert-slug-datawhen a session fails to load. - Testing-account models do not whitelist localhost — use the deployed URL.
- Settings/theme:
?g=<file>frompublic/.
Throwaway Playwright
Write drivers as .mjs under test-results/scratch (wiped by e2e; keep copies in the scratchpad). Run from the project directory so @playwright/test resolves. Viewport 1280x720. Use Write/Edit for driver files (Python "\n" escapes have produced literal newlines inside string literals).
In-page (window.SDV)
Object.values(SDV.sessions)[0]—parameters,outputs,customizeSDV.viewports—busyfor idle detectionSDV.EVENTTYPE_INTERACTION+SDV.addListener—SELECT_ON/OFF,HOVER_ON,MULTI_SELECT_*- Node
InteractionData:restrictedManagers,interactionTypes(capability),interactionStates(current)
Count computations with page.on("request") filtered to PUT and /output; diff the body's parameter values against the previous request.
Pulse highlight effects make pixel counting unreliable; use events, parameter values, or a solid-color settings file for snapshots.
Who committed? (async stacks)
Debounce in handleChange breaks stacks. Temporary console.log("[diag] ...", new Error().stack) in useParameterComponentCommons.handleChange, the custom parameter executor, and batchParameterValueUpdate; capture page.on("console"); then git checkout HEAD -- the instrumented files.
Stop every dev server and browser you started before finishing.
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.
- today First seen · 35 lines · 51 tokens per session scan A fedbfe71264e
browser-diagnosis is a skill published in the GitHub repository shapediver/AppBuilderSdk (15 stars, last pushed today), licensed MIT. It adds 51 tokens to every session and 527 once invoked, about $0.0002 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 2026-11-13.
browser-diagnosis compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| browser-diagnosisshapediver/AppBuilderSdk | Skill | 15 | today | MIT | A | 51 | Claude Code |
| chrome-devtools-cliChromeDevTools/chrome-devtools-mcp | Skill | 55k | today | Apache-2.0 | A | 31 | Claude Code |
| chrome-performance-optimizerchromium/chromium | Skill | 25k | today | BSD-3-Clause | A | 119 | Claude Code, Codex |
| opencli-autofixjackwener/OpenCLI | Skill | 31k | 5d ago | Apache-2.0 | A | 61 | Claude Code |
| nullawaychromium/chromium | Skill | 25k | today | BSD-3-Clause | A | 43 | Claude Code, Codex |
| reenable-testchromium/chromium | Skill | 25k | today | BSD-3-Clause | A | 85 | Claude Code, Codex |
| bisectchromium/chromium | Skill | 25k | today | BSD-3-Clause | A | 52 | Claude Code, Codex |