claude-code - 💡(How to fix) Fix [Bug] Agent makes changes in plan mode despite planning-only configuration [1 comments, 2 participants]

[{"error":"Error: Tool mcp__obsidian__read_note not found\n at xjK (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2664:29892)\n at IX (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:21016)\n at q9 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:39565)\n at pL (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:50276)\n at b06 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:86966)\n at _B6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85927)\n at Oi (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85748)\n at Y86 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:82107)\n at S6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:6491)\n at p6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:4976)","timestamp":"2026-04-14T08:43:30.327Z"},{"error":"Error: Tool mcp__obsidian__list_notes not found\n at xjK (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2664:29892)\n at IX (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:21016)\n at q9 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:39565)\n at pL (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:50276)\n at b06 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:86966)\n at _B6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85927)\n at Oi (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85748)\n at Y86 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:82107)\n at S6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:6491)\n at p6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:4976)","timestamp":"2026-04-14T08:43:30.328Z"},{"error":"Error: Tool mcp__obsidian__search_vault not found\n at xjK (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2664:29892)\n at IX (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:21016)\n at q9 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:39565)\n at pL (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:50276)\n at b06 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:86966)\n at _B6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85927)\n at Oi (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85748)\n at Y86 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:82107)\n at S6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:6491)\n at p6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:4976)","timestamp":"2026-04-14T08:43:30.334Z"},{"error":"Error: Tool mcp__obsidian__search_vault not found\n at xjK (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2664:29892)\n at IX (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:21016)\n at q9 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:39565)\n at pL (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:50276)\n at b06 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:86966)\n at _B6 (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:547:85927)\n at Oi (file:///C:/Users/sdzyr/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:…

TL;DR

The agent making changes in planning mode may be due to missing tools, and verifying the installation and configuration of mcp__obsidian__read_note, mcp__obsidian__list_notes, and mcp__obsidian__search_vault tools could resolve the issue.

Guidance

• Check the installation of the required tools by running a command to list all installed tools and verify if the missing tools are present.
• Review the configuration files to ensure that the tools are properly configured and enabled.
• If the tools are not installed, install them using the appropriate package manager or installation script.
• If the tools are installed but not configured correctly, update the configuration files to enable the tools.

Example

No code snippet is provided as the issue seems to be related to tool installation and configuration rather than code.

Notes

The provided error messages indicate that the tools mcp__obsidian__read_note, mcp__obsidian__list_notes, and mcp__obsidian__search_vault are not found, which could be the root cause of the issue. However, without more information about the installation and configuration process, it's difficult to provide a more specific solution.

Recommendation

Apply a workaround by installing and configuring the missing tools, as it seems to be the most likely cause of the issue. This should resolve the problem of the agent making changes in planning mode.