fix(policy): allow codebase_investigator by default in read-only policy #15000

abhipatel12 · 2025-12-12T17:09:12Z

Summary

Allowed codebase_investigator by default in the read-only policy configuration.

Details

The codebase_investigator tool is a read-only analysis tool but was missing from the default allowlist in packages/core/src/policy/policies/read-only.toml. This resulted in it requiring explicit user permission or higher privilege modes to run, despite being safe. This PR adds it to the policy with priority 50, matching other read-only tools like glob and read_file.

Related Issues

How to Validate

Build the core package: npm run build -w packages/core
Verify that codebase_investigator can be used without prompting for permission in default mode.
Review packages/core/src/policy/policies/read-only.toml to see the new entry.

Pre-Merge Checklist

gemini-code-assist · 2025-12-12T17:09:24Z

Summary of Changes

Hello @abhipatel12, 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 streamlines the use of the codebase_investigator tool by integrating it into the default read-only policy. This change ensures that a safe, read-only analysis tool is accessible by default, enhancing the user experience by removing unnecessary permission prompts for a non-privileged operation.

Highlights

Policy Update: The codebase_investigator tool has been added to the default read-only policy configuration, allowing it to run without requiring explicit user permission.

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github-actions · 2025-12-12T17:13:10Z

Size Change: -2 B (0%)

Total Size: 21.6 MB

ℹ️ View Unchanged

Filename	Size	Change
`./bundle/gemini.js`	21.6 MB	-2 B (0%)
`./bundle/sandbox-macos-permissive-closed.sb`	1.03 kB	0 B
`./bundle/sandbox-macos-permissive-open.sb`	890 B	0 B
`./bundle/sandbox-macos-permissive-proxied.sb`	1.31 kB	0 B
`./bundle/sandbox-macos-restrictive-closed.sb`	3.29 kB	0 B
`./bundle/sandbox-macos-restrictive-open.sb`	3.36 kB	0 B
`./bundle/sandbox-macos-restrictive-proxied.sb`	3.56 kB	0 B

_{compressed-size-action}

gemini-code-assist

Code Review

This pull request adds the codebase_investigator tool to the default read-only policy. While this seems correct based on the tool's current capabilities, I have identified a potential high-severity security risk stemming from an inconsistency in the agent's definition. My review comment details this risk and recommends resolving the underlying issue before this change is merged.

gemini-code-assist · 2025-12-12T17:15:11Z

packages/core/src/policy/policies/read-only.toml

+[[rule]]
+toolName = "codebase_investigator"
+decision = "allow"
+priority = 50


While codebase_investigator currently uses only read-only tools, allowing it by default introduces a potential security risk due to an inconsistency in its definition in packages/core/src/agents/codebase-investigator.ts.

Specifically:

The agent's prompt (line 109) states it can use the web_fetch tool.

The agent's toolConfig (line 85) does not grant it this capability.

The web_fetch tool is not present in this read-only.toml allowlist, which implies it is not considered safe to run by default without user confirmation. If a future change "fixes" the agent by adding web_fetch to its toolConfig, this policy rule would silently permit a potentially unsafe tool to run.

This latent security vulnerability should be addressed before whitelisting the agent. I recommend resolving the inconsistency in codebase-investigator.ts (e.g., by removing the mention of web_fetch from the prompt) before merging this change.

abhipatel12 · 2025-12-12T17:36:12Z

/patch preview

github-actions · 2025-12-12T17:36:30Z

✅ Patch workflow(s) dispatched successfully!

📋 Details:

Channels: preview
Commit: 12cbe320e44b236919eead036c5e326c4d167100
Workflows Created: 1

🔗 Track Progress:

…cy (#15000)

github-actions · 2025-12-12T17:58:35Z

🚀 Patch PR Created!

📋 Patch Details:

Environment: prod
Channel: preview → will publish to npm tag preview
Commit: 12cbe320e44b236919eead036c5e326c4d167100
Hotfix Branch: hotfix/v0.21.0-preview.3/0.21.0-preview.4/preview/cherry-pick-12cbe32/pr-15000
Hotfix PR: #15003

📝 Next Steps:

Review and approve the hotfix PR: #15003
Once merged, the patch release will automatically trigger
You'll receive updates here when the release completes

🔗 Track Progress:

View hotfix PR #15003

github-actions · 2025-12-12T18:17:00Z

🚀 Patch Release Started!

📋 Release Details:

Environment: prod
Channel: preview → publishing to npm tag preview
Version: v0.21.0-preview.3
Hotfix PR: Merged ✅
Release Branch: release/v0.21.0-preview.3-pr-15000

⏳ Status: The patch release is now running. You'll receive another update when it completes.

🔗 Track Progress:

View release workflow

github-actions · 2025-12-12T18:45:37Z

✅ Patch Release Complete!

📦 Release Details:

Version: 0.21.0-preview.4
NPM Tag: preview
Channel: preview
Dry Run: false

🎉 Status: Your patch has been successfully released and published to npm!

📝 What's Available:

GitHub Release: View release v0.21.0-preview.4
NPM Package: npm install @google/gemini-cli@preview

🔗 Links:

… default in read-only policy (google-gemini#15000)

fix(policy): allow codebase_investigator by default in read-only policy

36660bd

abhipatel12 requested a review from a team as a code owner December 12, 2025 17:09

galz10 approved these changes Dec 12, 2025

View reviewed changes

abhipatel12 enabled auto-merge December 12, 2025 17:14

gemini-code-assist bot reviewed Dec 12, 2025

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abhipatel12 added this pull request to the merge queue Dec 12, 2025

Merged via the queue into main with commit 12cbe32 Dec 12, 2025
19 of 20 checks passed

abhipatel12 deleted the fix/codebase-investigator-policy branch December 12, 2025 17:36

github-actions bot pushed a commit that referenced this pull request Dec 12, 2025

fix(policy): allow codebase_investigator by default in read-only poli…

e9246d7

…cy (#15000)

thacio added a commit to thacio/auditaria that referenced this pull request Dec 13, 2025

Merge Commit '12cbe320e': fix(policy): allow codebase_investigator by…

40f39e3

… default in read-only policy (google-gemini#15000)

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abhipatel12 commented Dec 12, 2025

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