fix(core): implement atomic update in MCP tool discovery by luisfelipe-alt · Pull Request #27619 · google-gemini/gemini-cli

luisfelipe-alt · 2026-06-01T18:48:45Z

Implement atomic update in refreshTools to retain MCP tools during transient failures

Summary

Fixed the "tool not found" error that occurs during transient network drops by ensuring an atomic update pattern for MCP tools. This ensures that the tool registry remains populated with the last known good state
if a background refresh attempt fails (e.g., due to a network drop).

Details

Exception Propagation in discoverTools: Modified discoverTools to throw an error when discovery fails (e.g., due to a network timeout) instead of silently returning an empty list.
Atomic Update in refreshTools: By propagating the error, the refreshTools loop now correctly aborts before clearing the registry. This ensures that existing tools are only replaced if a new set of tools
is successfully discovered.
Architectural Integrity: This approach correctly distinguishes between a server intentionally removing all tools (by returning an empty list) and a failure to communicate with the server (which now preserve
s the current state).
Test Coverage: Updated mcp-client.test.ts to verify that the registry is not cleared when a refresh fails and tightened existing assertions for the disconnect lifecycle.

Related Issues

How to Validate

Run the following commands to verify the fix and ensure no regressions:

npx vitest run packages/core/src/tools/mcp-client.test.ts
npm run build

Pre-Merge Checklist

Implement atomic update in refreshTools to retain existing tools when discoverTools fails due to network drops, resolving the 'tool not found' error.

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Replaces conditional length check with proper error propagation. Properly distinguishes between network failures (which skip updates) and successful empty tool discovery.

gemini-code-assist · 2026-06-01T18:49:15Z

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the robustness of MCP tool discovery by implementing an atomic update mechanism. By ensuring that the tool registry is not cleared when a background refresh fails due to transient issues, the system maintains its last known good state. This change also includes updated test cases to validate the new error handling and registry behavior.

Highlights

Atomic Tool Updates: Implemented an atomic update pattern in refreshTools to ensure the tool registry is only updated upon successful discovery, preventing data loss during transient network failures.
Error Propagation: Modified discoverTools to propagate errors instead of returning an empty list, allowing the refresh loop to abort gracefully when discovery fails.
Test Coverage: Updated mcp-client.test.ts to verify that the registry remains intact during failed refreshes and tightened assertions for the disconnect lifecycle.

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luisfelipe-alt · 2026-06-01T18:49:39Z

/gemini review

gemini-code-assist

Code Review

This pull request updates the discoverTools function in packages/core/src/tools/mcp-client.ts to rethrow the caught error during tool discovery. Corresponding unit tests in packages/core/src/tools/mcp-client.test.ts have been updated to assert that server-specific resources are removed upon disconnection, and that tools are not removed when discovery fails. There are no review comments, so I have no feedback to provide.

gemini-code-assist

Code Review

This pull request updates the discoverTools function in packages/core/src/tools/mcp-client.ts to throw an error when tool discovery fails, rather than swallowing it. Correspondingly, unit tests in packages/core/src/tools/mcp-client.test.ts have been updated to assert that tools are not removed during a failed discovery (atomic refresh) and to ensure that disconnect registry removals are called with the correct server name. There are no review comments, and I have no feedback to provide.

luisfelipe-alt · 2026-06-01T20:18:53Z

Let me provide my answers of your comments in previous PR

🚨 Critical Concerns (P0/P1)
Action required before merging.

packages/core/src/tools/mcp-client.ts:287: The PR description explicitly claims to have "Removed the eager registry wipe in disconnect()", but this change is completely missing from the diff. The disconnect() method still loops over registries and calls removeMcpToolsByServer(). If a transient network drop triggers a full disconnect/reconnect lifecycle, tools will still be lost. You must either remove the wipe from disconnect() (and update the tests) or clarify the connection lifecycle.

Why the Current Code is Correct (Clarifying the Connection Lifecycle):

What happens during a network drop: When a network connection drops, the underlying MCP client triggers an onerror event. In mcp-client.ts (inside the connect() method), this onerror handler simply updates the internal status to MCPServerStatus.DISCONNECTED. It does not call the disconnect() method.
When is disconnect() actually called? The disconnect() method is an explicit shutdown action. It is only called by the McpClientManager when the user explicitly disables a server, when an extension is stopped, or when the entire CLI application is shutting down. In these cases, we want the registry to be wiped to prevent stale state.
How the throw solves the bug (b-488476022.md): The bug reported that tools were lost during transient drops. This happened because a background refresh (refreshTools()) would trigger, attempt to call discoverTools(), fail due to the network drop, and previously return an empty list, which caused refreshTools() to eagerly wipe the registry.
* By adding the throw error in discoverTools(), we implemented an Atomic Update.
* Now, if a network drop occurs during a refresh, discoverTools() throws an error.
* The catch block in refreshTools() catches this error and aborts the refresh process before it reaches the removeMcpToolsByServer() line.
* As a result, the existing tools remain safely in the registry, solving the issue reported by the user.

Conclusion: The current code is architecturally sound. It preserves tools during transient network failures (via exception propagation in the refresh loop) while correctly cleaning up state during explicit shutdowns (via the disconnect() method). No further code changes are needed.

🧹 Refactoring & Nits (P2/P3)
Recommended improvements.

packages/core/src/tools/mcp-client.test.ts: The update from .toHaveBeenCalledOnce() to .toHaveBeenCalledWith('test-server') is a good tightening of the test assertions. No changes needed here unless disconnect() is updated.

Explanation of the Test Tightening:

Precision: Changing .toHaveBeenCalledOnce() to .toHaveBeenCalledWith('test-server') ensures that not only is the cleanup method called, but it is called with the correct server name. This prevents a false positive where the method might be called for the wrong server.
Robustness: It verifies that the McpClient is correctly identifying itself to the registries during the cleanup process.

How the Current Code Solves the Bug (b-488476022.md):
The core of the fix is the throw error added to the discoverTools() method. This change alone is sufficient to solve the "tool not found" issue without modifying the disconnect() method.

The Problem: Previously, if a network drop occurred during a background refresh, discoverTools() would fail and return an empty list. The refresh loop would then proceed to wipe the registry, thinking the
server intentionally removed all tools. This led to the "tool not found" error for the user.
The Solution (Atomic Update): By throwing an error instead of returning an empty list, we prevent the refresh loop from reaching the cleanup code. The catch block in refreshTools() aborts the update, leaving
the last known good state (the existing tools) in the registry.
Consistency with disconnect(): As explained previously, disconnect() is for explicit shutdowns where we want to clear the registry. Since transient network drops do not call disconnect(), keeping the cleanup
logic there is correct and does not cause the reported bug.

Conclusion: The current implementation is complete and correct. The test updates provide better verification of the existing (and desired) cleanup behavior during explicit disconnections.

📝 Metadata Review
Feedback on PR description or commit message clarity.

Out of Sync Description: The PR description claims the atomic update uses a length check (if (newTools.length > 0)). The actual implementation correctly uses exception propagation (throw error in discoverTools). While the implemented approach is architecturally superior (it correctly allows a server to intentionally remove all tools), the PR description is misleading and needs to be updated to reflect the final code.

Correct. The PR description has been synchronized with the final code to correctly describe the exception propagation approach.

github-actions · 2026-06-02T18:30:57Z

✅ 72 tests passed successfully on gemini-3-flash-preview.

🧠 Model Steering Guidance

This PR modifies files that affect the model's behavior (prompts, tools, or instructions).

⚠️ Consider adding Evals: No behavioral evaluations (evals/*.eval.ts) were added or updated in this PR. Consider adding a test case to verify the new behavior and prevent regressions.
🚀 Maintainer Reminder: Please ensure that these changes do not regress results on benchmark evals before merging.

This is an automated guidance message triggered by steering logic signatures.

github-actions · 2026-06-02T20:01:49Z

📊 PR Size: size/S

Lines changed: 17
Additions: +12
Deletions: -5
Files changed: 2

gemini-cli · 2026-06-09T02:22:18Z

Hi there! Thank you for your interest in contributing to Gemini CLI.

To ensure we maintain high code quality and focus on our prioritized roadmap, we only guarantee review and consideration of pull requests for issues that are explicitly labeled as 'help wanted'.

This PR will be closed in 7 days if it remains without that designation. We encourage you to find and contribute to existing 'help wanted' issues in our backlog! Thank you for your understanding.

…ni#27619) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Gal Zahavi <[email protected]> (cherry picked from commit 8e99c26)

…ni#27619) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Gal Zahavi <[email protected]>

* fix(core): Fix hysteresis in async context management pipelines. (google-gemini#26452) * Tighten private Auto Memory patch allowlist (google-gemini#26535) * fix(cli): hide read-only settings scopes (google-gemini#26249) * fix(ci): preserve executable bit for mac binaries (google-gemini#26600) * fix(cli): improve mcp list UX in untrusted folders (google-gemini#26457) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix(core): prevent silent hang during OAuth auth on headless Linux (google-gemini#26571) Co-authored-by: Jack Wotherspoon <[email protected]> * Changelog for v0.42.0-preview.0 (google-gemini#26537) Co-authored-by: gemini-cli-robot <[email protected]> * ci: fix Argument list too long in triage workflows (google-gemini#26603) * refactor(cli): migrate core tools to native ToolDisplay property and fix UI rendering (google-gemini#25186) * don't wrap args unnecessarily (google-gemini#26599) * fix(core): preserve system PATH in Git environment to fix ENOENT (google-gemini#25034) (google-gemini#26587) * fix(routing): fix resolveClassifierModel argument mismatch in ApprovalModeStrategy (google-gemini#26658) Co-authored-by: Tommaso Sciortino <[email protected]> * docs: add vi mode shortcuts and clarify MCP/custom sandbox setup (google-gemini#23853) Co-authored-by: Sam Roberts <[email protected]> * fix(ux): fixed issue with transcribed text not showing after releasing space (google-gemini#26609) * ci: fix json parsing in scheduled triage workflow (google-gemini#26656) * fix(cli): hide /memory add subcommand when memoryV2 is enabled (google-gemini#26605) * fix: prevent false command conflicts when launching from home directory (google-gemini#23069) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Tommaso Sciortino <[email protected]> * fix(core): cache model routing decision in LocalAgentExecutor (google-gemini#26548) * Changelog for v0.42.0-preview.2 (google-gemini#26597) Co-authored-by: gemini-cli-robot <[email protected]> Co-authored-by: Sam Roberts <[email protected]> * skip broken test (google-gemini#26705) * feat: export session to file and import via flag (google-gemini#26514) * Feat: Add Machine Hostname to CLI interface (google-gemini#25637) Signed-off-by: M-DEV-1 <[email protected]> Co-authored-by: Tommaso Sciortino <[email protected]> * docs(extensions): refactor releasing guide and add update mechanisms (google-gemini#26595) * fix(ci): fix maintainer identification in lifecycle manager (google-gemini#26706) * fix(ui): added quotes around session id in resume tip (google-gemini#26669) * Changelog for v0.41.0 (google-gemini#26670) Co-authored-by: g-samroberts <[email protected]> * refactor(core): agent session protocol changes (google-gemini#26661) * fix(context): implement loose boundary policy for gc backstop. (google-gemini#26594) * fix(core): throw explicit error on dropped tool responses (google-gemini#26668) * fix: resolve "function response turn must come immediately after function call" error (google-gemini#26691) Co-authored-by: Tommaso Sciortino <[email protected]> * fix(core): resolve parallel tool call streaming ID collision (google-gemini#26646) * feat(core): add LocalSubagentProtocol behind AgentProtocol (google-gemini#25302) * fix(cli): remove noisy theme registration logs from terminal (google-gemini#25858) Co-authored-by: Jack Wotherspoon <[email protected]> * ci: implement codebase-aware effort level triage (google-gemini#26666) * feat(acp/core): prefix tool call IDs with tool names to support tool rendering in ACP compliant IDEs. (google-gemini#26676) * fix(mcp): treat GET 404 as 405 in StreamableHTTPClientTransport (google-gemini#24847) Co-authored-by: Coco Sheng <[email protected]> Co-authored-by: Spencer <[email protected]> Co-authored-by: Tommaso Sciortino <[email protected]> * feat(core): add RemoteSubagentProtocol behind AgentProtocol (google-gemini#25303) * feat(context): Improvements to the snapshotter. (google-gemini#26655) * fix(context): Change snapshotter model config. (google-gemini#26745) * fix(cli): allow installing extensions from ssh repo (google-gemini#26274) Signed-off-by: Daniel Finimundi <[email protected]> Co-authored-by: Dev Randalpura <[email protected]> * fix(cli): prevent duplicate SessionStart systemMessage render (google-gemini#25827) Co-authored-by: Jacob Richman <[email protected]> * fix(cli/acp): prevent infinite thought loop in ACP mode by disablig nextSpeakerCheck (google-gemini#26874) * fix(cli): use static tool name in confirmation prompt to avoid parsing errors (google-gemini#26866) * fix(routing): Refactor tool turn handling for the conversation history in NumericalClassifierStrategy to prevent 400 Bad Request (google-gemini#26761) * fix(core): handle malformed projects.json in ProjectRegistry (google-gemini#26885) * fix(ui): added a gutter width to the input prompt width calculation (google-gemini#26882) * fix: prevent EISDIR crash when customIgnoreFilePaths contains directories (google-gemini#19868) (google-gemini#19898) Co-authored-by: Tommaso Sciortino <[email protected]> * revert 6b9b778 (google-gemini#26893) * Fix/vscode run current file ts (google-gemini#22894) Co-authored-by: Spencer <[email protected]> * Allow Enter to select session while in search mode in /resume (google-gemini#21523) Co-authored-by: Tommaso Sciortino <[email protected]> * fix(core): ignore .pak and .rpa game archive formats by default (google-gemini#26884) Co-authored-by: Tommaso Sciortino <[email protected]> * fix(cli): enable adk non-interactive session (google-gemini#26895) * fix(cli): restore resume for legacy sessions (google-gemini#26577) Co-authored-by: Tommaso Sciortino <[email protected]> * fix: respect explicit model selection after Flash quota exhaustion (google-gemini#26759) (google-gemini#26872) * feat(context): Introduce adaptive token calculator to more accurately calculate content sizes. (google-gemini#26888) * chore: update checkout action configuration in workflows (google-gemini#26897) * fix (telemetry): inject quota_project_id to prevent fallback to default oauth client (google-gemini#26698) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Tommaso Sciortino <[email protected]> * Exclude extension context from skill extraction agent (google-gemini#26879) * Enable NumericalRouter when using dynamic model configs (google-gemini#26929) * ci: actively triage missing priority labels and intelligently clean up conflicting labels (google-gemini#26865) * refactor(core): introduce SubagentState enum for progress (google-gemini#26934) * fix(ci): replace brittle --no-tag with explicit staging-tmp tag (google-gemini#26940) * Incremental refactor repo agent towards skills-based composition (google-gemini#26717) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix(ui): fixed line wrap padding for selection lists (google-gemini#26944) * fix(core): update read_file schema for v1 compatibility (google-gemini#22183) (google-gemini#26922) * fix(ci): configure git remote with token for authentication (google-gemini#26949) * chore(release): bump version to 0.44.0-nightly.20260512.g022e8baef (google-gemini#26957) * Changelog for v0.42.0 (google-gemini#26958) Co-authored-by: gemini-cli-robot <[email protected]> * Refactor: Eliminate `no-unsafe-return` suppressions via strict type validation (google-gemini#20668) Signed-off-by: M-DEV-1 <[email protected]> Co-authored-by: Tommaso Sciortino <[email protected]> * Changelog for v0.43.0-preview.0 (google-gemini#26959) Co-authored-by: gemini-cli-robot <[email protected]> * feat(core): change agent registration to first-wins and prioritize project (google-gemini#26953) * feat(cli): merge Auto modes into a single Auto mode (google-gemini#26714) * fix(core): preserve OAuth refresh tokens during rotation and retrieval (google-gemini#26924) * fix(cli): allow keychain auth for --list-sessions and non-interactive mode (google-gemini#26921) * fix(core): handle EISDIR on virtual drives in memory discovery (google-gemini#26985) * fix(cli): auto-approve shell redirections in AUTO_EDIT mode (google-gemini#27003) * ci: suppress bot comments during standard triage maintenance (google-gemini#27006) * fix(core): isolate subagent thread context (google-gemini#26449) * fix(core): refresh MCP OAuth token usage after re-auth (google-gemini#26312) Co-authored-by: Tommaso Sciortino <[email protected]> * fix(ui): clamped table column widths (google-gemini#26991) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * chore: add execution permission to scripts/review.sh (google-gemini#27009) * fix(core): made context files append instead of replace (google-gemini#26950) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix: add system PATH fallback for ripgrep resolution (google-gemini#26777) (google-gemini#26868) * chore: clean up launched memory features (google-gemini#26941) Co-authored-by: Jenna Inouye <[email protected]> * fix(core): throttle shell text output and bound live UI buffer (google-gemini#26955) * fix(cli): don't crash when an @-mention captures a non-path blob (google-gemini#25980) * fix(core): ensure stable fallback for restricted preview models (google-gemini#26999) * feat(core): expose RAG snippets to local log file for debugging (google-gemini#27016) * fix(acp/auth): prevent conflicting credentials on enterprise gateways and support optional API keys natively (google-gemini#27021) * fix(core): respect NO_PROXY for network-based MCP servers (google-gemini#27012) * fix(cli): resolve permission denied in sandbox on NixOS and other distros (google-gemini#27004) * fix(ui): preserve new line at the end of edit window (google-gemini#27057) * fix(core): ensure Vertex AI sets hasAccessToPreviewModels and remove aggressive 404 fallback revocation (google-gemini#27067) * fix(core): ensure stable admin settings comparison across IPC to prevent restart loop (google-gemini#27066) * fix(deps): update vulnerable dependencies (google-gemini#27062) * fix(core): resolve EISDIR errors during file processing (google-gemini#21527) (google-gemini#27041) * docs(extensions): clarify env var sanitization policy for MCP and ext… (google-gemini#22854) Co-authored-by: Jack Wotherspoon <[email protected]> Co-authored-by: Jenna Inouye <[email protected]> * fix(ui): add ENAMETOOLONG and ENOTDIR to exceptions for file parsing errors (google-gemini#27069) * fix(cli): explicitly clear entrypoint when spawning sandbox container (google-gemini#27059) * docs: update sandbox image command (google-gemini#26774) * fix(core): externalize https-proxy-agent to fix proxy support (google-gemini#26361) * security: update dependencies to fix critical and high vulnerabilities (google-gemini#27077) * Fix/web fetch ctrl c abort (google-gemini#24320) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix(core): add aliases and thinking config for gemini-3.1 models (google-gemini#27007) * fix(core): use hasAccessToPreview for auto model resolution and fix disappearing models (google-gemini#27112) * feat(core): add adk.agentSessionSubagentEnabled flag (google-gemini#26947) * fix(core): enforce compile-time exhaustiveness in content-utils (google-gemini#27207) * feat(skills): add agent-tui and tui-tester skills (google-gemini#27121) * fix(context): Fix snapshot recovery across sessions. (google-gemini#26939) * fix(core): add unit tests for stableStringify (google-gemini#27212) * fix(core): prefer pwsh.exe over Windows PowerShell 5.1 (google-gemini#25859) (google-gemini#25900) Co-authored-by: Tommaso Sciortino <[email protected]> * feat(core): add LocalSessionInvocation (google-gemini#26665) * refactor: decouple auto model description and configuration from releaseChannel (google-gemini#27227) Co-authored-by: David Pierce <[email protected]> * fix(core): prevent isBinary false-positive on Windows PTY streams (google-gemini#26565) * fix(cli): Prevent unmapped keys in Vim Normal mode from inserting text into prompt Input. (google-gemini#25139) Co-authored-by: Tommaso Sciortino <[email protected]> * fix(a2a-server): Implement default policy loading for parity with CLI (google-gemini#27073) * feat(core): add RemoteSessionInvocation (google-gemini#26937) * fix: allow configured MCP servers in non-interactive mode (google-gemini#27215) * fix(core): add exception handling to migrateFromFileStorage (google-gemini#27229) * fix(cli): bundle ink worker-entry.js (google-gemini#27249) * feat(core): wire AgentSession invocations into agent-tool (google-gemini#26948) * fix(core): prevent path traversal in custome command file injection (google-gemini#27234) * fix(core): respect NO_PROXY in global fetch dispatcher (google-gemini#27216) * fix(core): correctly handle nullable array types in MCP tools (google-gemini#27228) * Proposal: deterministic encoding for child-process I/O (google-gemini#27247) * fix(cli): preserve proxy-agent named exports in ESM bundle (google-gemini#27145) * feat(cli): add Sublime Text and Emacs Client editors, improve error messages and documentation (google-gemini#21090) Co-authored-by: Ananth Kini <[email protected]> * Changelog for v0.43.0-preview.1 (google-gemini#27297) Co-authored-by: gemini-cli-robot <[email protected]> * fix(devtools): bundle devtools package to avoid resolution errors (google-gemini#27250) * fix(cli): integrate PolicyEngine into ACP session to prevent deadlocks (google-gemini#23507) (google-gemini#27252) * fix: robust ripgrep path resolution and 1p hermetic execution support (google-gemini#27253) * refactor: decouple stored session deletion from ChatRecordingService (google-gemini#22920) (google-gemini#27039) * fix(core): improve Alpine shell compatibility (google-gemini#26770) * fix(core): generalize MCP compliance fix for tool results (google-gemini#27045) * fix(scripts): scrub CI env vars in dev to keep interactive mode (google-gemini#27159) * fix(core): Added date field for the GCal MCP (google-gemini#27251) * fix(core): centralize path validation to prevent crashes from malformed prompts (google-gemini#27211) * fix(core): prevent SIGHUP kills in PTY environments (WSL2/Kitty/Alacritty) (google-gemini#27267) * fix(core): dynamic fallback routing for exhausted quota models (google-gemini#27315) * Auto detect pnpm global installation path for macOS and Windows (google-gemini#22748) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Coco Sheng <[email protected]> * fix(windows): resolve interactive shell arrow-key navigation on Windows (google-gemini#23505) * ci: robust stale issue lifecycle and consolidated triage labels (google-gemini#27015) * fix(context): Ensure last message is processed. (google-gemini#27232) * chore/release: bump version to 0.44.0-nightly.20260521.g57c42a5c4 (google-gemini#27324) * fix(ui): added volta to auto update check (google-gemini#27353) * perf: optimize issue triage and lifecycle management (google-gemini#27346) * chore(release): bump version to 0.45.0-nightly.20260521.g854f811be (google-gemini#27362) * fix(cli): prevent Termux relaunch and resize remount loops (google-gemini#27110) Co-authored-by: Spencer <[email protected]> * Feat/a2a expose usage metadata (google-gemini#27288) * feat(context): Complete simplification work. (google-gemini#27345) * fix(core): force update_topic tool to execute sequentially (google-gemini#27357) * Changelog for v0.44.0-preview.0 (google-gemini#27360) Co-authored-by: gemini-cli-robot <[email protected]> * Changelog for v0.43.0 (google-gemini#27361) Co-authored-by: gemini-cli-robot <[email protected]> * Revert "fix(core): prevent SIGHUP kills in PTY environments" (google-gemini#27401) * fix(cli): filter internal session context from history during resumption (google-gemini#27391) * Update default auto routing (google-gemini#27071) * fix(core): bypass routing classifiers to prevent orphaned function response errors (google-gemini#27389) * fix(core): suppress PTY resize EBADF errors (google-gemini#27461) * fix(core): prevent blacklist bypass in mcp list (google-gemini#27377) Co-authored-by: Gal Zahavi <[email protected]> * fix(cli): ignore unmapped vim normal keys (google-gemini#27102) * fix(core): harden PTY resize against native crashes (google-gemini#27496) * Changelog for v0.45.0-preview.0 (google-gemini#27495) Co-authored-by: gemini-cli-robot <[email protected]> * Changelog for v0.44.0 (google-gemini#27569) Co-authored-by: gemini-cli-robot <[email protected]> * fix(cli): prevent spam loop when preferredEditor is invalid (google-gemini#25324) Co-authored-by: Tommaso Sciortino <[email protected]> * Adding quote (google-gemini#27571) * Transition to flash GA model when experiment flag is present. (google-gemini#27570) * chore(ci): add optimized PR size labeler and batch workflows (google-gemini#27616) * fix(ci): use pull_request_target trigger to grant write access on fork PRs (google-gemini#27637) * chore(release): bump version to 0.47.0-nightly.20260602.gcfcecebe8 (google-gemini#27644) * Changelog for v0.46.0-preview.0 (google-gemini#27641) Co-authored-by: gemini-cli-robot <[email protected]> * Respect backend definitions for 3.5 flash and Update auto mode to use 3.5 flash when the flag is enabled. (google-gemini#27645) * fix(policy): add EBUSY fallback and TOML parse recovery (google-gemini#19919) (google-gemini#21541) Signed-off-by: krishdef7 <[email protected]> Co-authored-by: Sikandar <[email protected]> Co-authored-by: Tommaso Sciortino <[email protected]> * Changelog for v0.45.0 (google-gemini#27642) Co-authored-by: gemini-cli-robot <[email protected]> * update the max amount of times the Antigravity transition banner can be displayed. (google-gemini#27676) * chore: remove experimental text from browser agent docs (google-gemini#27746) * fix(core): implement atomic update in MCP tool discovery (google-gemini#27619) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Gal Zahavi <[email protected]> * Vertex ai model mapping fix (google-gemini#27749) * Add documentation and migration commands for Antigravity CLI (google-gemini#27765) Co-authored-by: Gal Zahavi <[email protected]> * Avoid persisting empty resume sessions (google-gemini#27770) * chore(release): bump version to 0.48.0-nightly.20260609.g3a13b8eeb (google-gemini#27779) * ci(dependabot): enable cooldown period for npm packages (google-gemini#27743) * refactor(core): standardize tool output formatting (google-gemini#27772) * ci: update workflow logging and policy configurations (google-gemini#27853) * fix(core): Ensure zero-quota limits fail fast to prevent retry loop hang (google-gemini#27698) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix(core): handle multi-line escaped quotes in stripShellWrapper (google-gemini#27467) Co-authored-by: luisfelipe-alt <[email protected]> * fix(cli): prevent path traversal vulnerabilities during skill install… (google-gemini#27767) * Fix/pending tools and trust overrides (google-gemini#27854) * ci: use internal environment for scheduled nightly releases (google-gemini#27865) (google-gemini#27939) * feat(core): Support GDC air-gapped Service Identity after auth library update (google-gemini#27956) * fix(cli): handle tmux false positive background detection (google-gemini#27572) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Gal Zahavi <[email protected]> * Add static eval source analyzer (google-gemini#27631) * fix(config): migrate coreTools setting to tools.core (google-gemini#27947) * fix(core-tools): resolve defensive path resolution for at-reference files (google-gemini#27943) * Revert "fix(core-tools): resolve defensive path resolution for at-reference files" (google-gemini#27992) * chore(release): bump version to 0.49.0-nightly.20260617.g4d3dcdce1 (google-gemini#28003) * Changelog for v0.48.0-preview.0 (google-gemini#27999) Co-authored-by: gemini-cli-robot <[email protected]> * fix(ci): provide fallbacks for package variables in nightly release (google-gemini#28016) * chore(deps): pin dependencies and enforce 14-day update cooldown (google-gemini#27948) * fix(ci): append trailing slash to registry url in npmrc (google-gemini#28038) * feat: add eval:inventory CLI command and reporting logic (google-gemini#28009) * fix: resolve workspace publish failures and scheduler event loop starvation (google-gemini#28063) * fix(ci): use wombat dressing room fallback in nightly release to prevent ENEEDAUTH (google-gemini#28104) * Add JSON output for eval inventory (google-gemini#28058) * fix/verify release npm ci ignore scripts (google-gemini#28116) * fix(ci): prevent workspace binary shadowing in release verification (google-gemini#28132) * Feat/tool registry discovery (google-gemini#28113) * fix(ci): prevent bad NPM releases and promote job crashes (google-gemini#28147) * Changelog for v0.50.0-preview.1 (google-gemini#28150) Co-authored-by: gemini-cli-robot <[email protected]> * chore(release): bump version to 0.51.0-nightly.20260625.g3fbf93e26 (google-gemini#28151) * Fix no_proxy test (google-gemini#28131) Co-authored-by: Jerry Lin <[email protected]> * Vertex base url update (google-gemini#28145) * fix(security): enforce case-insensitive sensitive path blocklist and vscode hitl (google-gemini#27966) Co-authored-by: David Pierce <[email protected]> * fix(core-tools): resolve defensive path resolution for at-reference files and fix macOS tests (google-gemini#28053) Co-authored-by: David Pierce <[email protected]> * feat(caretaker): implement Cloud Run webhook ingestion service (google-gemini#28015) Co-authored-by: Christian Gunderman <[email protected]> * fix(core): resolve symbolic link directory escape in memory import processor (google-gemini#28233) * feat(caretaker): egress cloud run service skeleton (google-gemini#28167) * fix(sandbox): make ~/.gitconfig read-only in the macOS sandbox (google-gemini#28221) Co-authored-by: David Pierce <[email protected]> * fix(core): preserve escape sequences in string literals for modern models (google-gemini#28299) Co-authored-by: David Pierce <[email protected]> * fix(core): strip thoughts from scrubbed history turns and resolve thought leakage (google-gemini#27971) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Gal Zahavi <[email protected]> Co-authored-by: David Pierce <[email protected]> * Refactor: exclude transient CI configuration files from workspace context (google-gemini#28216) * feat(caretaker): add triage worker core foundational modules (google-gemini#28163) * feat(caretaker-egress): implement octokit github action handler for egress service (google-gemini#28303) * chore(release): bump version to 0.52.0-nightly.20260707.g27a3da3e8 (google-gemini#28323) * Changelog for v0.51.0-preview.0 (google-gemini#28320) Co-authored-by: gemini-cli-robot <[email protected]> * Changelog for v0.50.0 (google-gemini#28322) Co-authored-by: gemini-cli-robot <[email protected]> Co-authored-by: David Pierce <[email protected]> * fix(core-tools): bypass LLM correction for JSON and IPYNB files in write_file and replace (google-gemini#28223) Co-authored-by: David Pierce <[email protected]> * fix(core): use unambiguous previous intent label in fallback summary (google-gemini#28343) * feat(caretaker-triage): implement main worker execution loop and egress action publisher (google-gemini#28306) * fix(privacy): show a clear message when the account has no Code Assist tier (google-gemini#28304) * fix(core): enrich shared project quota limit errors with setup hint (google-gemini#28391) * fix(a2a-server): ensure task cancellation aborts execution loop (google-gemini#28316) * fix(core): simplify plan mode write policy to support relative paths (google-gemini#28398) * feat(core): Bump node google-auth-library version to 10.9.0 (google-gemini#28385) Co-authored-by: Jerry Lin <[email protected]> * chore/release: bump version to 0.52.0-nightly.20260715.gfa975395b (google-gemini#28402) * fix(core,a2a): group cancelled tool responses and coalesce consecutive roles to prevent 400 Bad Request (google-gemini#28407) * feat(caretaker-triage): implement LLM triage orchestrator and container build (google-gemini#28345) * refactor(cli): align macOS permissive Seatbelt profiles with deny-default model (google-gemini#28424) * fix(core): mitigate infinite ReAct loops and prompt injection loops (google-gemini#28429) Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * fix(a2a-server): enforce workspace trust and task isolation to prevent RCE (google-gemini#28470) * fix(core): sequentially verify cached credentials and restore GOOGLE_APPLICATION_CREDENTIALS fallback (google-gemini#28472) Co-authored-by: David Pierce <[email protected]> * feat(evals): add eval coverage report command (google-gemini#28169) * Changelog for v0.53.0-preview.0 (google-gemini#28507) Co-authored-by: gemini-cli-robot <[email protected]> * Changelog for v0.52.0 (google-gemini#28508) Co-authored-by: gemini-cli-robot <[email protected]> * chore(release): bump version to 0.54.0-nightly.20260722.gf743ab579 (google-gemini#28510) * fix(caretaker): sanitize and wrap issue title in untrusted_context (google-gemini#28352) * chore(caretaker): update vitest to v3.2.4 and add package-lock.json files (google-gemini#28409) * fix(core): rotate session ID on model fallback to prevent stateful API errors (google-gemini#28469) * feat(caretaker-triage): post comment before auto-closing issues (google-gemini#28411) * fix(core): enforce HTTPS for GoogleCredentialsAuthProvider to prevent cleartext leakage (google-gemini#28517) * fix(core): filter out thought parts from getHistoryTurns when context management is disabled (google-gemini#28509) --------- Signed-off-by: M-DEV-1 <[email protected]> Signed-off-by: Daniel Finimundi <[email protected]> Signed-off-by: krishdef7 <[email protected]> Co-authored-by: joshualitt <[email protected]> Co-authored-by: Sandy Tao <[email protected]> Co-authored-by: Christian Van <[email protected]> Co-authored-by: ruomeng <[email protected]> Co-authored-by: Adib234 <[email protected]> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: Rhys Sullivan <[email protected]> Co-authored-by: Jack Wotherspoon <[email protected]> Co-authored-by: gemini-cli-robot <[email protected]> Co-authored-by: gemini-cli-robot <[email protected]> Co-authored-by: Coco Sheng <[email protected]> Co-authored-by: Michael Bleigh <[email protected]> Co-authored-by: Tommaso Sciortino <[email protected]> Co-authored-by: Daniel Weis <[email protected]> Co-authored-by: Christopher Thomas <[email protected]> Co-authored-by: Sam Roberts <[email protected]> Co-authored-by: Dev Randalpura <[email protected]> Co-authored-by: Br1an <[email protected]> Co-authored-by: AK <[email protected]> Co-authored-by: mahadevan <[email protected]> Co-authored-by: Christian Gunderman <[email protected]> Co-authored-by: Adam Weidman <[email protected]> Co-authored-by: Aishanee Shah <[email protected]> Co-authored-by: JAYADITYA <[email protected]> Co-authored-by: Sri Pasumarthi <[email protected]> Co-authored-by: krishdef7 <[email protected]> Co-authored-by: Spencer <[email protected]> Co-authored-by: Daniel Finimundi <[email protected]> Co-authored-by: Aryan Singh <[email protected]> Co-authored-by: Jacob Richman <[email protected]> Co-authored-by: Suhaan Raqeeb Khavas <[email protected]> Co-authored-by: Neil Nair <[email protected]> Co-authored-by: Franco Pieri <[email protected]> Co-authored-by: Eswar809 <[email protected]> Co-authored-by: Kuroda Kayn <[email protected]> Co-authored-by: Gal Zahavi <[email protected]> Co-authored-by: Yulong Wu <[email protected]> Co-authored-by: kevinjwang1 <[email protected]> Co-authored-by: David Pierce <[email protected]> Co-authored-by: Sahil Kirad <[email protected]> Co-authored-by: Jenna Inouye <[email protected]> Co-authored-by: EMERSON BUSSON <[email protected]> Co-authored-by: ifitisit <[email protected]> Co-authored-by: PROTHAM <[email protected]> Co-authored-by: 7. Sun <[email protected]> Co-authored-by: sotokisehiro <[email protected]> Co-authored-by: Anish Sabharwal <[email protected]> Co-authored-by: kaluchi <[email protected]> Co-authored-by: Tirth Naik <[email protected]> Co-authored-by: Rajesh patel <[email protected]> Co-authored-by: Keith Schaab <[email protected]> Co-authored-by: Ramón Medrano Llamas <[email protected]> Co-authored-by: Om Patel <[email protected]> Co-authored-by: ashishch432 <[email protected]> Co-authored-by: Andrea Alberti <[email protected]> Co-authored-by: Ananth Kini <[email protected]> Co-authored-by: Yuvraj Angad Singh <[email protected]> Co-authored-by: Debasish <[email protected]> Co-authored-by: Hashaam Zahid <[email protected]> Co-authored-by: tison <[email protected]> Co-authored-by: adithya32 <[email protected]> Co-authored-by: Syed Ayman Quadri <[email protected]> Co-authored-by: jvargassanchez-dot <[email protected]> Co-authored-by: Billy Biggs <[email protected]> Co-authored-by: Om Patel <[email protected]> Co-authored-by: Mukunda Rao Katta <[email protected]> Co-authored-by: nirali <[email protected]> Co-authored-by: Sikandar <[email protected]> Co-authored-by: Gaurav <[email protected]> Co-authored-by: luisfelipe-alt <[email protected]> Co-authored-by: Cesar Sanchez Coraspe <[email protected]> Co-authored-by: sidhantgoyal-droid <[email protected]> Co-authored-by: amelidev <[email protected]> Co-authored-by: Vedant Mahajan <[email protected]> Co-authored-by: Jerry Lin <[email protected]> Co-authored-by: Jerry Lin <[email protected]> Co-authored-by: Chad <[email protected]> Co-authored-by: Chad <[email protected]>

luisfelipe-alt and others added 10 commits May 22, 2026 19:57

fix(mcp-client): prevent eager tool wipe on network timeout

50f36a2

Implement atomic update in refreshTools to retain existing tools when discoverTools fails due to network drops, resolving the 'tool not found' error.

Update packages/core/src/tools/mcp-client.ts

17b222a

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

fix(mcp-client): implement robust error handling in tool discovery

fae56f3

Replaces conditional length check with proper error propagation. Properly distinguishes between network failures (which skip updates) and successful empty tool discovery.

Merge branch 'main' into bugfix/WT-102at2_488476022

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test(mcp-client): remove reproduction test artifact

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Merge branch 'main' into bugfix/WT-102at2_488476022

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Merge branch 'main' into bugfix/WT-102at2_488476022

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Merge branch 'main' into bugfix/WT-102at2_488476022

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Merge branch 'main' into bugfix/WT-102at2_488476022

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Merge branch 'main' into bugfix/WT-102at2_488476022

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📊 AI CLI 工具社区动态日报 2026-06-02 zx0828/big_model_radar#81

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Merge branch 'main' into bugfix/WT-102at2_488476022

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📊 AI CLI 工具社区动态日报 2026-06-02 litang9/big_model_radar#1

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📊 AI CLI 工具社区动态日报 2026-06-03 litang9/big_model_radar#6

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📊 AI CLI 工具社区动态日报 2026-06-04 litang9/big_model_radar#11

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Merge branch 'main' into bugfix/WT-102at2_488476022

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📊 AI CLI 工具社区动态日报 2026-06-09 jasonalang/big_model_radar#61

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📊 AI CLI 工具社区动态日报 2026-06-09 litang9/big_model_radar#36

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[ca] CLI Updates: Copilot SDK 1.0.2→1.0.3, Gemini CLI 0.39.1→0.47.0 github/gh-aw#40748

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fix(core): implement atomic update in MCP tool discovery - #27619

fix(core): implement atomic update in MCP tool discovery#27619
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