chore(main): release opera-devtools-mcp 0.3.1

[github-actions]

🤖 I have created a release beep boop

0.3.1 (2026-08-17)

🎉 Features

• Add a new tool for listing in-page tools (gated behind a command line flag) (#1239) (cea963b)
• add a skill for detecting memory leaks using take_memory_snapshot tool (#1162) (d19a235)
• add a utility function to check for localhost. (#2454) (c5ebf9e)
• Add additional params to get_heapsnapshot_edges (#2561) (b58c613)
• add an error logging method (#2006) (06e0ab6)
• add an option to customize ffmpeg path (#1937) (b377454)
• add experimental TOON support for structured content output (#2042) (aa33bff)
• add experimentalGcfFormat flag for GCF-encoded tool responses (#2235) (3d21389)
• add extraHttpHeaders emulation to emulate tool (#1176) (6992106)
• Add get_heapsnapshot_dominators MCP tool (#2215) (08c234e)
• Add get_heapsnapshot_duplicate_strings MCP tool (#2280) (67a56c0)
• Add get_heapsnapshot_object_details MCP tool (#2374) (8432cb9)
• Add list of in-page tools to responses for navigate_page, list_pages, select_page, close_page, new_page (#1762) (f7ae9e8)
• Add MCP tools for heap snapshot comparison (#2198) (5d7b656)
• add optional stack traces to list_console_messages (#2505) (85c73a0)
• add PWA automation tools (#2430) (0ea5c8d), closes #2270
• Add retaining paths MCP tool (#2187) (a97c642)
• Add the get_heapsnapshot_edges MCP tool (#2180) (4f8eb7a)
• add tool call params logging (#1863) (528309a)
• add update notification to both binaries (#1783) (e01e333)
• Adds close_heapsnapshot MCP tool (#2174) (8713b93)
• agentic browsing in lighthouse (#1931) (5fa2750)
• allow evaluate_script to skip the stable DOM wait (#2346) (781e2fb)
• auto handle dialogs during script evaluation (#1839) (da33cb5)
• chat model selector (8d2c167)
• cli: generate commands for conditional tools (#1962) (b2b3e99)
• Command Code CLI instructions for MCP server (#1226) (0a7c0a7)
• created cursor plugin.json setting file with release auto versioning (#2091) (10c8205)
• Emit native contexts in snapshot summary (#2375) (f78a911)
• ensure extensions for file outputs (#1867) (e7a0d50)
• experimental click_at(x,y) tool (#1788) (c4f5471)
• Filter heap snapshot objects by native context (#2377) (76fd242)
• group identical consecutive console messages in list_console_messages (#1939) (dbddb2e)
• Handle multiple providers of third-party developer tools (#2168) (30d59a7)
• implement extension service worker logs (#1915) (29e3898)
• include page title in list_pages output (#2166) (b646feb)
• mcp: add opera_list_models tool (c86f4df)
• mcp: add optional model param to opera_chat tool (01be738)
• mcp: update generated CLI options for model selector (f7ae844)
• memory debugging tools (#2169) (0217397)
• Opera customizations on top of chrome-devtools-mcp (e6cc101)
• opera: add opera_list_models tool and update documentation (4655f82)
• Print object count and total sizes in get_heapsnapshot_details (#2325) (15a6b78)
• publish the skills folder (#2229) (5367f7e)
• record client name in telemetry. (#1208) (9a47b65)
• Report memory kept alive by contexts in get_heapsnapshot_summary (#2570) (4103808)
• report new URL after actions that trigger navigation (#1853) (b594858)
• screenshot: add CLI options to cap screenshot size at the source (#1823) (55c8a54)
• Show self and retained sizes for edges (#2529) (2a7eb76)
• support --allow-unrestricted-paths configuration (#2296) (6e56c02)
• support allowedUrlPattern & blockedUrlPattern Options (#2037) (02b4492)
• support Chrome extensions debugging (#1922) (3ff21cf)
• support DevTools header redactions as an option (#1848) (5c398c4)
• support experimental allowlist for navigate tool calls (#1935) (d502557)
• support filePath in evaluate_script (#2054) (90d368d)
• Support filter with heap snapshots aggregates (#2323) (2812902)
• support MCP client roots feature (#1945) (def53dd)
• support third-party developer tools (#1982) (7548c97)
• support uploading multiple files with upload_file (#2257) (c8a2393)
• support webm format in screencast (#1934) (85b8993)
• telemetry: log devtools data. (#2460) (df2c753)
• telemetry: log is_devtools_open with each tool call. (#2445) (6f60eab)
• telemetry: report whether tool call is made on localhost. (#2455) (6398b7e)
• update Lighthouse to 13.4.0 (#2317) (ffc6060)
• update lighthouse to 13.4.1 (#2398) (745ffe7)
• Use HeapSnapshotProxy.nodeIndexById (#2193) (6bd8c91)
• webmcp: Add experimental tool to execute WebMCP tool (#1873) (0aff266)
• webmcp: Add experimental tool to list WebMCP tools page exposes (#1845) (f97b573)

🛠️ Fixes

• add proactive tool rejection when dialog is open (#1978) (6ce254e)
• always allow tmpdir access with client roots (#1984) (a90378a)
• Apply CPU throttling to secondary CDP session (#2092) (3ade962)
• avoid showing update notification for local builds (#1889) (3f0cf10), closes #1886
• bound per-navigation network request retention (#2435) (b08c73c)
• cli: address pid file creation issues (#2124) (1b51a52)
• cli: allow --autoConnect on CLI start (#2015) (9882391), closes #1859 #1184
• cli: avoid defaulting to isolated when userDataDir is provided (#1258) (73e1e24)
• cli: correct WebP MIME type check in handleResponse ('webp' → 'image/webp') (#1899) (e3a5f6b), closes #1898
• cli: have pageId as first argument (#2142) (60be3e6)
• cli: improve error messages to guide AI agents and developers (#2161) (cf00305)
• cli: re-generate cli correctly (#1969) (8cbdb8d)
• cli: update the CLI skill (#2569) (0e108ea)
• cli: validate session ids (#2475) (5ca9121)
• cli: warn about version mismatch between cli and daemon (#2461) (3afc44d)
• create PID directory with secure permissions (0o700) (#2262) (7fa95d3)
• Cursor plugin homepage setting field (#2173) (8971890)
• daemon: preserve hyphenated browser flags in arg serialization and lazy daemon startup (#2405) (d79f3ba)
• disable NetworkManager in DevTools (#1834) (d0e6539)
• dispose heap snapshot workers on context teardown (#2428) (f245c76)
• do not block tool calls on a roots/list the client is slow to answer (#2477) (d93e667), closes #2476
• do not enable invalidation tracking in performance traces (#2500) (f00778d), closes #2499
• do not throw synchronously when a CDP session is gone (#2466) (ba4fe3e)
• do not use getSelectedMcpPage (#2039) (85f935b)
• do not validate local files for remote browsers (#2573) (c0a7417)
• don't throw if Dialog was handled (#2437) (574c320)
• downscale viewport screenshots when no viewport is emulated (#2380) (39c4140)
• enforce .gz instead of json.gz in performance tools (#2305) (b06e39b)
• ensure debugger statements are skipped by devtools (#2555) (f8572f0)
• exit on stdin EOF and SIGTERM/SIGINT/SIGHUP, closing the browser cleanly (#2117) (43b934c)
• fix formatter bugs (#2552) (b247315)
• Fix throttling info in performance trace output (#2096) (57f32b0)
• flakiness in wait for helper (#2541) (12f989a)
• handle errors due to open dialogs during tool calls (#1953) (06b331f)
• handle missing third-party tool toolGroup description gracefully (#2224) (8fe398e)
• handle screencast file extensions case-insensitively and clean up temp dir on failure (#2207) (ba80096)
• hide Windows update check consoles (#2231) (6225ffb)
• ignore unmapped PerformanceIssue events (#1852) (ea57e86)
• improve daemon lifecycle (#2360) (3ee6a27)
• improve file writing (#2447) (1da4bb0)
• improve geolocation emulation (#2036) (213720b)
• include saved image paths in CLI JSON output (#2070) (a9fb555)
• include the tab id in get_tab_id's text response (#2381) (dcbaf49)
• input: select empty-value options by text (#2501) (b969c45)
• input: stop native select option clicks from timing out (#1960) (510ec0f)
• keep a still-open selected page instead of falling back to the first page (#2328) (c645eee), closes #2304
• keep page ids unique across browser reconnects (#2345) (3e8d922)
• limit windows test concurrency (#2205) (e77101e)
• list_pages should work after selected page is closed (#1145) (2664455)
• Make fill_form more appealing when filling forms with checkboxes (#1971) (407c2bd)
• make pageId required (#2084) (d751693), closes #2052
• make sure env variables are consistently applied when parsing args (#1994) (f45f068)
• mark categoryExtensions flag mutually exclusive with autoConnect (#1202) (8c2a7fc), closes #1072
• mark lighthouse and memory as non-read-only (#1769) (bec9dae)
• memory: dispose the heap-snapshot worker when loading fails (#2449) (744738d)
• network: keep redirect chain order consistent between text and JSON (#2221) (5a9d6af)
• network: trailing data in Network redirect chain (#1880) (2f458c1)
• note about missing elements should not show in verbose mode (#1950) (80bee1e)
• only require a page in page-scoped tools (#2030) (8e06761)
• opera: correct description for opera_list_models tool to indicate availability with Opera Neon (1869870)
• opera: increase service worker retry delay from 1000ms to 2500ms (cf45c92)
• opera: remove trailing comma in opera_list_models tool documentation (de86728)
• opera: remove unnecessary blank line in opera_list_models tool documentation (30c0972)
• opera: update description for opera_list_models tool to clarify availability (d4eb20f)
• paginate page 0 in list_network_requests and list_console_messages (#2359) (d0025b3)
• performance: reset trace-running flag when start_trace setup fails (#2420) (40240c0)
• regression after the #2443 (#2462) (4c80ce4)
• reject unknown MCP server options (#2547) (0b4390d)
• release held modifiers when press_key key event fails (#2347) (78ccb19)
• remove double space in navigate error message (#1847) (429e0ca)
• remove duplicate .mcp.json (#2095) (dbf6ba9)
• rename maxRetainedSize column (#2402) (75c7048)
• report unknown tool arguments (#2064) (041b208)
• report when the selected page was auto-replaced by the fallback (#2308) (2c16ac3), closes #2304
• Reset toolGroups before gathering toolGroups (#2200) (ed02047)
• resolve page ids only among listed pages (#2332) (eb04951), closes #2304
• respect user's npm registry configuration in update check (#2038) (83a299f)
• respecte allow/block list in loadResouce (#2254) (6a94663)
• return error message when screencast_stop is called with no active recording (#2209) (9e32002)
• screenshot: dispose element handle after take_screenshot (#2422) (fffb40e)
• Set viewport after updating timeouts when setting emulation (#2134) (0c3ac37)
• snapshot: resolve element ids on the correct snapshot (#2295) (b703f2c)
• telemetry: bucketize string length (#1972) (bf3cb58)
• telemetry: re-run the update metrics script (#2005) (e9ec375)
• telemetry: resolve enum values through nested schema wrappers (#2315) (c065fd9)
• toggle lazy loading for source maps. (#2486) (8028bfe)
• use pinned version for plugins (#2135) (8ea5f09)
• use realpath for MCP roots validation (#2127) (176eb69)
• validate extension-enforced output paths (#2269) (a922814)
• versioning for Claude Code plugin (#1233) (966b86f)
• Wait until daemon is started (#2327) (ed7e95d)
• wait: avoid 180s mutex stall when a dialog opens during an action (#2427) (b4e8f74)
• wrap .mcp.json config in mcpServers key (#1246) (c7948cf)

📄 Documentation

• add Bob MCP client configuration (#2364) (5c16940)
• Add devin cli install instruction to README (#2361) (45262c0)
• add Grok Build CLI configuration section (#2294) (aa4be07)
• add troubleshooting for Claude Code plugin HTTPS clone failures (#1195) (d082ca4)
• add version to the LTS (#2080) (a2083a2)
• align coding agent examples with Antigravity (#2094) (ce31594)
• clarify resource limitations around the number of tabs (#1927) (42be7c3)
• clarify tools included into CLI (#1925) (76ab9fa)
• correct the user data directory documentation (#2473) (5ddbffd)
• document network response and request extensions (#1887) (796d6f2)
• explain concurrent session options (#2062) (41944b3)
• extract WebMCP into its own category (#1993) (da0441d)
• fix Antigravity config -y flag before npx positional args (#2272) (604b38f)
• Fix Claude Code instructions (#2018) (a5ad67b)
• fix commands (#2546) (9331b63)
• fix formatting and indentation of tool descriptions (#2275) (8d8cf12)
• fix installation instructions for VS Code (#2087) (9f47df3)
• fix showing defaults in configuration (#2234) (38dd346)
• fix skill and reference documentation issues (#1249) (9236834)
• fix typo (#2075) (1deb4f8)
• Include Mistral Vibe setup in README (#1801) (582c9e0)
• provide disclaimer about supported browsers (#1237) (8676b72)
• readme: explicitly call out that CD4A can power your browser agent (#2227) (705d0e1)
• remove token estimates (#2003) (14938ac)
• remove windows workaround and document Node LTS support (#2074) (30dcd0b)
• Rename project and enhance README content (#1856) (c066488)
• skill: guide agent to prompt for --categoryExtensions (#2189) (8b458f7)
• skills: update memory leak debugging skill to use native MCP tools (#2436) (99bd90a)
• unhide various experimental flags (#2055) (081c903)
• Update Chrome requirement for categoryExperimentalWebmcp (#2163) (354458e)
• update generate-docs.ts tools output order (#1991) (895fc65), closes #1932
• update memory leak debugging skill (#2330) (c1736a0)
• update security.md (#2248) (e559765)
• update security.md (#2362) (5012b07)
• update the README on installing as a VS code agent plugin (#1796) (1b5dcae)

⚡ Performance

• concurrent I/O in Root Path Resolution (#2279) (b2c63e6)
• lighthouse file saves to run concurrently (#2178) (f90f863)
• memory: release old navigation request in NetworkCollector (#1200) (1e6456c)
• use CDP to find open DevTools pages (reland) (#1210) (53483bc)
• use concurrent reads for loadIssueDescriptions (#2249) (d144965)

🏗️ Refactor

• add support for CLI sessionIds in tests (#1919) (82b67b0)
• change type of logger (#2165) (bf0574d)
• clean up McpContext getters (#2340) (5b33deb)
• clean up McpResponse.handle (#2392) (348975d)
• clean up more of the context interface (#2335) (9cd734b)
• clean up page management (#2333) (16db01f)
• clean up page snapshot generation (#2348) (68cfce2)
• extract ToolHandler (#2032) (178b790)
• introduce Explicit resouce managent (using) (#2443) (5b25370)
• make collectors work per page (#2324) (9bc61b4)
• mcp: use dispatchAction for listModels instead of separate CDP method (2d0b02f)
• Merge MCP tools for comparing heap snapshots (#2281) (3f4a49a)
• modularize the fork behind an upstream seam (0e60a2d)
• modularize the fork behind an upstream seam (1d09f48)
• move and rename files (#2355) (9c3542b)
• move DevTools universe to McpPage (#2341) (c006c9b)
• move files to folders that better represent their use (#2564) (06b7a5c)
• move remaining McpContext getters (#2342) (58ba174)
• move tool groups (#2365) (2d944f9)
• move waitForEventsAfterAction to McpPage (#1780) (c7c8f50)
• performance: use default trace categories from DevTools (#2571) (cb89762)
• re-use Puppteer Mutex (#2444) (775ea2d)
• remove isolated context getter (#2336) (8a4ddb3)
• remove redundant validatePath calls (#2136) (521c388)
• rename methods for clarity (#2442) (dc23bcd)
• replace debug with NodeJS native (#2562) (f44f3c6)
• set process titles for easier debugging (#1770) (0fe3896)
• share browser launch options via a single source to prevent relaunch/browser drift (030e080)
• share browser launch options via a single source to prevent relaunch/browser drift (69ebba4)
• use a destructor to shorten the calls (#2376) (77e1d3f)
• Use array instead of Map for idToClassKey (#2321) (ff53b7b)
• use helper for Dialog handle (#2334) (64005f9)
• use puppeteer Extension API (#1911) (ec895f1)
• use response page in formatting (#2349) (c53c1ec)
• use validate files on the tool level (#2152) (2e039c0), closes #2150
• waitForResult helpers (#2041) (f6a12be)

---

This PR was generated with Release Please. See documentation.