cookie-debugging skill tells agents to call `navigate_page` with `reload: true`, which the tool rejects

[coygeek]

Description of the bug

skills/cookie-debugging/SKILL.md (workflow 1, step 4) tells agents to trigger a fresh request with "Use navigate_page with reload: true". navigate_page has no reload argument; reloads use type: "reload", and the server rejects unknown tool arguments. An agent that follows the skill verbatim gets a tool error instead of a reload. The skill text is identical in the 1.10.1 npm package and on main at b2f522c.

Actual behavior

On 1.10.1, step 3 returned isError: true with Unknown argument for tool "navigate_page": "reload". Expected arguments: "pageId", "type", "url", "ignoreCache", "handleBeforeUnload", "initScript", "timeout". Remove it and retry. On main b2f522c it returned isError: true with Input validation error: Invalid arguments for tool navigate_page: Unrecognized key: "reload". The step 4 control returned Successfully reloaded the page. in both builds.

Reproduction

Executed on macOS against the published chrome-devtools-mcp@1.10.1 package and a local build of main b2f522c, with usage statistics and update checks disabled.

1. npm i --prefix /tmp/x chrome-devtools-mcp@1.10.1 @modelcontextprotocol/sdk.
2. Start chrome-devtools-mcp --headless --isolated --no-usage-statistics --no-performance-crux under an MCP stdio client (I used @modelcontextprotocol/sdk Client + StdioClientTransport) and call list_pages.
3. Call navigate_page with arguments {"pageId": 1, "reload": true}, as the skill describes.
4. Control: call navigate_page with {"pageId": 1, "type": "reload"}.

Expectation

The skill's instruction should perform a reload. navigate_page reloads through type: "reload" (docs/tool-reference.md, navigate_page; schema in src/tools/pages.ts, type: zod.enum(['url', 'back', 'forward', 'reload'])), and since 1.0.0 the server reports unknown tool arguments (CHANGELOG 1.0.0, "report unknown tool arguments", #2064).

MCP configuration

--headless --isolated --no-usage-statistics --no-performance-crux

Chrome DevTools MCP version

1.10.1 (npm) and main b2f522c (local build)

Chrome version

154.0.8037.93 (stable, launched by the server, headless, isolated)

Node version

v24.21.0

Operating system

macOS

Evidence

• Expected source: docs/tool-reference.md (navigate_page) and src/tools/pages.ts (navigatePage schema) at tag chrome-devtools-mcp-v1.10.1 and main b2f522c; CHANGELOG 1.0.0 entry for fix: report unknown tool arguments #2064.
• Failure source: skills/cookie-debugging/SKILL.md:52 (identical in 1.10.1 and main b2f522c) and the tool responses quoted under Actual behavior.
• Evidence provenance: observed
• Local verification: reproduced
• Reproduction completeness: complete

Fix check

Failing now: the call the skill describes, navigate_page with reload: true, returns an unknown-argument error. Restored: the skill's instruction for triggering a reload, followed as written, produces Successfully reloaded the page. as the step 4 control does. Control: navigate_page keeps rejecting unknown arguments such as reload; restoration must not come from accepting undeclared arguments unless that contract is deliberately changed.