codeflash/docs/claude-code-plugin/troubleshooting.mdx
2026-03-27 13:42:08 -07:00

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---
title: "Troubleshooting"
description: "Common problems and fixes for the Codeflash Claude Code plugin"
icon: "wrench"
sidebarTitle: "Troubleshooting"
---
## Plugin not appearing after install
**Symptom**: `/plugin` doesn't show codeflash in the Installed tab.
**Fix**:
1. Verify the marketplace was added: `/plugin marketplace add codeflash-ai/codeflash-cc-plugin`
2. Install again: `/plugin install codeflash`
3. Check you're running Claude Code v2.1.38 or later
## `/optimize` does nothing
**Symptom**: Running `/optimize` produces no output or immediately returns.
**Possible causes**:
- No project config found. The agent walks from CWD to the git root looking for `pyproject.toml` or `package.json`. Make sure you're inside a git repository.
- Codeflash CLI not installed. For Python: `pip install codeflash` in your venv. For JS/TS: `npm install --save-dev codeflash`.
- The agent is running in the background. Check if you see "Codeflash is optimizing in the background" — results appear when the background task completes.
## Permission prompts every time
**Symptom**: Claude asks for permission to run codeflash on every invocation.
**Fix**: Run `/setup` to add `Bash(*codeflash*)` to `.claude/settings.json`. Or add it manually:
```json
{
"permissions": {
"allow": [
"Bash(*codeflash*)"
]
}
}
```
## No venv found (Python)
**Symptom**: Hook or agent reports "No Python virtual environment was found."
**Fix**:
1. Create a venv: `python3 -m venv .venv`
2. Activate it: `source .venv/bin/activate`
3. Install codeflash: `pip install codeflash`
4. Restart Claude Code from within the activated venv
The plugin searches for venvs in this order:
1. `<project_dir>/.venv`
2. `<project_dir>/venv`
3. `<repo_root>/.venv`
4. `<repo_root>/venv`
## Codeflash not installed (JS/TS)
**Symptom**: `npx codeflash --version` fails or package not found.
**Fix**:
```bash
npm install --save-dev codeflash
```
Run this in the directory containing your `package.json`.
## 10-minute timeout exceeded
**Symptom**: Codeflash background task times out.
This can happen on large projects. Options:
- Optimize specific files instead of the entire project: `/optimize src/specific_file.py`
- Target individual functions: `/optimize src/utils.py my_function`
## Formatter errors
**Symptom**: Codeflash fails with formatter-related errors.
**Check**:
1. Read the `formatter-cmds` (Python) or `formatterCmds` (JS/TS) in your config
2. Verify each formatter is installed:
- Python: `which black` (or whichever formatter)
- JS/TS: `npx prettier --version` (or whichever formatter)
3. Set `formatter-cmds = ["disabled"]` or `"formatterCmds": ["disabled"]` to skip formatting entirely