MCP, MCP server
Charles Mcp
Docs | Tool Contract | AGENTS | Agent Workflow Guide | English README
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit eb5d0927739a, unchanged since the check below.
PERMISSION_DELETE_FILES INSTALL_UNPINNED SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER OBFUSCATION_FILE_OVER_READ_CAP
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
charles_mcp/utils.py, line 177
shutil.rmtree(dst) - INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
README.en.md, line 115
- macOS/Linux: run: curl -LsSf https://astral.sh/uv/install.sh | sh - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.env.example, line 2
# Copy this file to .env and adjust values for your local environment. - INSTALL_DOCUMENTED_INSTALLER Note
Documentation shows an installer that pipes a download into a shell.
README.en.md, line 115
- macOS/Linux: run: curl -LsSf https://astral.sh/uv/install.sh | sh - OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
uv.lock, line 1
version = 1
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Concern
can delete files.
PERMISSION_DELETE_FILES
charles_mcp/utils.py, line 177
shutil.rmtree(dst)
charles_mcp/utils.py, line 203
shutil.rmtree(path)
charles_mcp/reverse/ingest/native_convert.py, line 23
result = subprocess.run(
Install and update
Concern
dependencies are not pinned. README documents an installer that pipes a download into a shell.
INSTALL_UNPINNED INSTALL_DOCUMENTED_INSTALLER
README.en.md, line 115
- macOS/Linux: run: curl -LsSf https://astral.sh/uv/install.sh | sh
README.md, line 115
- macOS/Linux: run: curl -LsSf https://astral.sh/uv/install.sh | sh
requirements.txt, line 2
mcp>=1.25.0
Network
Pass
No network call found.
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
.env.example, line 2
# Copy this file to .env and adjust values for your local environment.
.gitignore, line 22
# Local environment files
docs/plans/2026-03-06-charles-mcp-stabilization.md, line 332
- Modify: `.env.example`
Show more
docs/plans/2026-03-06-charles-mcp-stabilization.md, line 374
git add pyproject.toml README.md .env.example .gitignore .github/workflows/ci.yml docs/contracts/tools.md tests/fixtures/session_sample.chlsj
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
uv.lock, line 1
version = 1
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit eb5d0927739a. can delete files. dependencies are not pinned. README documents an installer that pipes a download into a shell. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: eb5d0927739ab278cc8903e55e40160efee15c45
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