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…hromeDevTools#2985) When a command auto-starts the daemon, serializing against mcpOptions forwarded tool arguments that collided with server options (specifically viewport from emulate) to the daemon's startup flags. Use getCliOptions() matching the start command so tool arguments are not forwarded as server options.
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@nroscino, please review this PR (automatically distributed) |
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Please check the following:
-
Replace
serializeArgs(getCliOptions(), argv)in the tool-command handler ofsrc/bin/chrome-devtools.tswithstart([], sessionId)and drop thegetCliOptions/mcpOptionsimport if it becomes unused. Tool commands declare no server options and the parser is.strict(), soargvcan hold only tool arguments; any serialization against server options forwards only name collisions (viewporttoday, any future tool argument with a server-option name tomorrow), andstart()already prependsDEFAULT_CLI_ARGS(--viaCli). -
In
tests/e2e/chrome-devtools-status.test.ts, assert the exact daemon args (assert.match(statusResult.stdout, /args=\["--viaCli"\]/)) instead of!stdout.includes('--viewport'). The exact assertion proves that auto-start forwards no tool argument, not onlyviewport. -
Use
assert.ok(...)orassert.doesNotMatch(...)instead of bareassert(...)in the new test. The file uses theassert.*form everywhere else. -
Rebase onto
main; the PR isDIRTY. The auto-start branch onmainnow readsif (!daemonRunning)(from #3109), so the one-line change conflicts. -
Update the PR description and commit message to describe the shipped behavior: "auto-start forwards no tool arguments to the daemon" rather than "serialize against
getCliOptions()", if request 1 is applied.
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@trukhinyuri the PR title and description need an update |
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🤖 I have created a release *beep* *boop* --- ## [1.12.0](chrome-devtools-mcp-v1.11.0...chrome-devtools-mcp-v1.12.0) (2026-10-22) ### 🎉 Features * add --maxNavigationSaved flag to configure retained navigation history ([#3018](#3018)) ([a580d13](a580d13)) * add Kimi Code plugin manifest ([#3029](#3029)) ([cd00b64](cd00b64)) * Analyze heap snapshots without a browser connection ([#3156](#3156)) ([78c8320](78c8320)) * **config:** add --watchConfig to reload config file changes ([#3248](#3248)) ([b48561f](b48561f)) * **config:** introduce layered ServerConfig for live reload ([#3203](#3203)) ([37f1fda](37f1fda)) * **config:** share ReadonlyServerConfig with McpContext and McpPage ([#3204](#3204)) ([0813bf3](0813bf3)) * **config:** support reloading blockedUrlPattern and allowedUrlPattern ([#3268](#3268)) ([cc850f5](cc850f5)) * **context:** release disabled feature state on config reload ([#3049](#3049)) ([c0140d1](c0140d1)) * Paginate by default in heap snapshot tools ([#3201](#3201)) ([fb8375b](fb8375b)) * Paginate detailed diff in compare_heapsnapshots ([#3195](#3195)) ([4a9dd53](4a9dd53)) * run independent tool calls in parallel with a TaskRunner ([#3243](#3243)) ([8a8d877](8a8d877)) * run page-scoped tools on different pages in parallel ([#3252](#3252)) ([f8f18ac](f8f18ac)) * **server:** add McpServer.applyConfig() to reload configuration ([#3051](#3051)) ([f874aeb](f874aeb)) * **slim:** support filepath in slim mode screenshot ([#3296](#3296)) ([d399c4a](d399c4a)) * Sort objects for class by self size in compare_heapsnapshots ([#3205](#3205)) ([f8a18c6](f8a18c6)) * **tools:** support updating ToolHandler definitions in place ([#3050](#3050)) ([8064138](8064138)) * **wait_for:** support opt-in visible text matching ([#3212](#3212)) ([eef92da](eef92da)) ### 🛠️ Fixes * allow paths below a filesystem-root workspace root ([#3277](#3277)) ([296ccef](296ccef)) * block evaluate_script while a dialog is open ([#3196](#3196)) ([545bcbb](545bcbb)) * bound take_snapshot wait and clear the geolocation override ([#3265](#3265)) ([6282f54](6282f54)) * **browser:** redact WebSocket headers from connection logs ([#2901](#2901)) ([3a2f91e](3a2f91e)) * capture thrown transform errors as Zod validation issues ([#3242](#3242)) ([0f95c21](0f95c21)) * clear handled dialog in McpPage.getDialog() ([#3241](#3241)) ([2ab93a3](2ab93a3)), closes [#2958](#2958) * **cli:** disallow --slim in CLI start options ([#2987](#2987)) ([#3113](#3113)) ([ae3f61c](ae3f61c)) * **cli:** do not forward tool args to start ([#3114](#3114)) ([fef1598](fef1598)) * **cli:** serialize object daemon arguments ([#2797](#2797)) ([f73a440](f73a440)) * close the tab opened by a failed new_page ([#2928](#2928)) ([c174677](c174677)) * **config:** accept native JSON objects for wsHeaders in config files ([#3262](#3262)) ([371e6c2](371e6c2)) * **console:** describe Map, Set, function, DOM node, symbol and cyclic arguments ([#3199](#3199)) ([968e4e5](968e4e5)) * **console:** include the reason of unhandled promise rejections ([#3148](#3148)) ([f7cdf73](f7cdf73)) * defer focus emulation until a page is explicitly targeted ([#3230](#3230)) ([35abe35](35abe35)) * disable Puppeteer signal handlers for launched browsers ([#3238](#3238)) ([3afec73](3afec73)), closes [#3154](#3154) * discover third-party developer tools before tool lookup ([#3208](#3208)) ([2777fa0](2777fa0)), closes [#2973](#2973) * discover third-party developer tools in page tools ([#3207](#3207)) ([cf33529](cf33529)), closes [#2980](#2980) * drop InlineTextBox nodes from text snapshots ([#3202](#3202)) ([f8c775a](f8c775a)) * **emulate:** keep previous viewport when setViewport fails ([#3150](#3150)) ([19d883c](19d883c)) * exclude source maps from the npm package ([#3295](#3295)) ([d575da4](d575da4)) * keep surrogate pairs and emoji whole when truncating titles, names and bodies ([#3215](#3215)) ([058adcf](058adcf)) * let resourceTypes match CORS preflights and prefetches ([#3217](#3217)) ([e342c6e](e342c6e)) * **lighthouse:** explain unsupported URL schemes in navigation mode ([#3144](#3144)) ([c6ad84a](c6ad84a)) * **lighthouse:** fail the audit when Lighthouse reports a runtime error ([#3188](#3188)) ([53ea78d](53ea78d)) * **lighthouse:** restore the emulated viewport after a navigation audit ([#3189](#3189)) ([c777ece](c777ece)) * **network:** list only earlier hops in a request's redirect chain ([#3198](#3198)) ([4675940](4675940)) * **network:** remove unsupported websocket from list_network_requests filter ([#2961](#2961)) ([#3282](#3282)) ([8b119d9](8b119d9)) * **network:** reset page network emulation before applying URL restrictions ([#3312](#3312)) ([f25f3df](f25f3df)) * **pages:** reject devtools:// URLs in navigate_page and new_page ([#2935](#2935)) ([#3128](#3128)) ([c94c03d](c94c03d)) * **pages:** report the actual page size after resize_page ([#2998](#2998)) ([#3132](#3132)) ([f003056](f003056)) * **pages:** revert reporting the page size after resize_page ([#3308](#3308)) ([186ea66](186ea66)), closes [#3306](#3306) * **pagination:** return all items when pageSize is omitted and pageIdx is 0 ([#2996](#2996)) ([#3134](#3134)) ([3ad9115](3ad9115)) * **performance:** populate structuredContent for traceInsight in performance_analyze_insight ([#2981](#2981)) ([#3115](#3115)) ([c2c6cc4](c2c6cc4)) * preserve unread page fallback across snapshots and deduplicate page disposal ([#3161](#3161)) ([8604365](8604365)) * print the no-roots temp-directory warning under default flags ([#2927](#2927)) ([0dd8ed9](0dd8ed9)) * reject empty, extra, and unknown parts in geolocation and viewport transforms ([#3097](#3097)) ([#3120](#3120)) ([3ea31fb](3ea31fb)) * resolve error causes on the session that reported the exception ([#3220](#3220)) ([b2d37e8](b2d37e8)) * resolve service worker IDs for console messages ([#2881](#2881)) ([3804a9a](3804a9a)) * return message when page exposes no 3p developer tools ([#3197](#3197)) ([663f3c3](663f3c3)), closes [#3004](#3004) * **script:** surface non-Error thrown and rejected values in evaluate_script ([#2951](#2951)) ([#3127](#3127)) ([b1e6e68](b1e6e68)) * **security:** validate filesystem paths that parse as http/ws URLs ([#3186](#3186)) ([91e112d](91e112d)) * **snapshot:** omit uid for accessibility nodes without backendNodeId ([#3187](#3187)) ([9054351](9054351)) * stop active screencast on McpPage.dispose() ([#3160](#3160)) ([558af81](558af81)) * stop get_network_request waiting forever for an unread no-store body ([#3216](#3216)) ([c556be1](c556be1)) * surface nested error causes and autoConnect hint on connection failure ([#3111](#3111)) ([d7f1e78](d7f1e78)) * treat 0.0.0.0 and [::] browser endpoints as local ([#3321](#3321)) ([7d5f7de](7d5f7de)) * treat IPv4-mapped IPv6 loopback as localhost ([#3255](#3255)) ([6cfb34c](6cfb34c)) * truncate data: URLs in accessibility snapshots ([#3292](#3292)) ([11e7d47](11e7d47)) * validate type_text submitKey before typing ([#3185](#3185)) ([c8615d7](c8615d7)) * **wait_for:** find text in dynamically attached iframes ([#3210](#3210)) ([5f84888](5f84888)) * warn when screenshot dimensions exceed 16384px limit ([#2952](#2952)) ([#3291](#3291)) ([10455b7](10455b7)) ### 📄 Documentation * add a pre-submit checklist to AGENTS.md ([#3236](#3236)) ([e96ee6c](e96ee6c)) * clarify URL pattern port and hostname matching ([#3287](#3287)) ([4723335](4723335)) * **config:** note that hot-reloaded URL restrictions keep open targets attached ([#3314](#3314)) ([47db2b8](47db2b8)) * correct CLI availability of extension tools ([#2852](#2852)) ([a7280ee](a7280ee)) * explain how to install skills, including the CLI skill ([#3274](#3274)) ([46eb546](46eb546)) * remove experimental status from CLI and promote it in README ([#3273](#3273)) ([0ced16b](0ced16b)) * require a rebase only when the branch has merge conflicts ([#3239](#3239)) ([d1143ac](d1143ac)) * **skills:** clarify Lighthouse score scale and contrast workflow ([#3006](#3006)) ([#3218](#3218)) ([bf8c6d9](bf8c6d9)) ### ⚡ Performance * **cli:** load a small third-party bundle in the chrome-devtools CLI ([#3200](#3200)) ([552e1f8](552e1f8)) * load the Lighthouse bundle on first use ([#3169](#3169)) ([798f03a](798f03a)) ### 🏗️ Refactor * **config:** isolate scripts and unit tests from home config discovery ([#3256](#3256)) ([65e6b97](65e6b97)) * **config:** lock slim and pageIdRouting options when viaCli is set ([#3257](#3257)) ([384d9aa](384d9aa)) * **config:** pass ReadonlyServerConfig to BrowserManager and add OptionGate ([#3267](#3267)) ([98302f2](98302f2)) * **config:** simplify watchConfig and start watcher inside connect ([#3259](#3259)) ([878c5f6](878c5f6)) * extract errorResult() and routedPageId() in ToolHandler ([#3251](#3251)) ([9a6b03a](9a6b03a)) * import types and values from a module in one statement ([#3303](#3303)) ([f4eaf1f](f4eaf1f)) * **lighthouse:** move Lighthouse runner methods to McpPage and add bundle types ([#3283](#3283)) ([e1823a2](e1823a2)) * list optional properties last in inline object types ([#3302](#3302)) ([dc929c0](dc929c0)) * register all tools upfront across modes ([#3163](#3163)) ([58f8d1f](58f8d1f)) * **response:** pass live ReadonlyServerConfig to McpResponse ([#3258](#3258)) ([6042490](6042490)) * **tools:** add explicit factory types to tool definitions ([#3284](#3284)) ([4d1d7b2](4d1d7b2)) * use #private names instead of the private modifier ([#3301](#3301)) ([2e13311](2e13311)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
Fixes #2985
Summary
getCliOptions()rather thanmcpOptionsinsrc/bin/chrome-devtools.ts, preventing tool arguments such asemulate --viewportfrom leaking into the daemon server startup flags.tests/e2e/chrome-devtools-status.test.ts.