Silmaril CDP

Use this skill to operate the local Silmaril toolkit from PowerShell.

Locate the toolkit

• Prefer D:\silmairl cdp\silmaril.cmd in this environment.
• If that path is missing, look for silmaril.cmd on PATH or in a nearby checkout.
• Invoke from PowerShell with & 'D:\silmairl cdp\silmaril.cmd' ....

Install the toolkit if missing

Use this setup on Windows when the toolkit is not already present:

Only clone or copy the toolkit after the user explicitly approves fetching or installing remote code.

1. Clone or copy the repository:

git clone https://github.com/Malac12/CDP-tools.git "D:\silmairl cdp"

1. Ensure Chrome, Chromium, or Edge is installed.

The toolkit checks standard Windows install paths and falls back to chrome.exe on PATH.

1. Run the toolkit from PowerShell:

& 'D:\silmairl cdp\silmaril.cmd' openbrowser --json

& 'D:\silmairl cdp\silmaril.cmd' openUrl 'https://example.com' --json

& 'D:\silmairl cdp\silmaril.cmd' get-text 'body' --json

This is sufficient for the core CDP workflow. No machine-wide PowerShell execution policy change is required because silmaril.cmd invokes PowerShell with ExecutionPolicy Bypass.

Default workflow

1. Start or attach a CDP browser with openbrowser.
2. Navigate with openUrl.
3. Read page state with exists, get-text, query, or get-dom.
4. Mutate only after validating selectors.
5. Wait on one clear synchronization signal after each action.
6. Prefer run for short repeatable flows.

Operating rules

• Prefer --json for almost every command so later steps can parse structured output.
• Prefer live DOM commands over get-source when choosing selectors or checking rendered state.
• Prefer stable selectors such as data-test, data-testid, semantic IDs, and meaningful attributes.
• Use either --target-id or --url-match when multiple tabs exist; never use both together.
• Pass --yes for page actions and mutations such as click, type, set-text, set-html, and eval-js.
• Treat eval-js, proxy-override, proxy-switch, and openurl-proxy as high-risk commands.
• Use --allow-unsafe-js for eval-js, or set SILMARIL_ALLOW_UNSAFE_JS=1 only for a trusted local session.
• Use --allow-mitm for proxy commands, or set SILMARIL_ALLOW_MITM=1 only for a trusted local session.
• Keep proxy listeners on loopback addresses unless the user explicitly requests --allow-nonlocal-bind.
• Put long JavaScript in a file and use eval-js --file instead of pasting large inline expressions.
• Avoid fixed sleeps when a wait command can express the intended state.

Command selection

• Use get-text for a single text value.
• Use query for structured multi-row extraction.
• Use get-dom to debug selector or markup issues.
• Use get-source only when raw response HTML matters more than the rendered DOM.
• Use wait-for, wait-for-any, wait-for-gone, wait-until-js, or wait-for-mutation to synchronize.

References

• Read references/command-patterns.md for common command shapes and PowerShell-safe examples.
• Read references/flows.md before building or editing a run flow.
• Read references/proxy.md when working with openurl-proxy, proxy-override, or proxy-switch.