MCP, MCP server
FsMcp
FsMcp is an idiomatic F# toolkit for building Model Context Protocol (MCP) servers and clients. It wraps the official Microsoft ModelContextProtocol .NET SDK with computation expressions
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 6f5055493e30, unchanged since the check below.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
scripts/consumer-smoke.py, line 57
completed = subprocess.run(command, cwd=cwd, env=environment, text=True, check=False)
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
requests shell access. No manifest field names shell or command execution.
PERMISSION_SHELL_UNDECLARED
scripts/consumer-smoke.py, line 57
completed = subprocess.run(command, cwd=cwd, env=environment, text=True, check=False)
scripts/repro-stdio-stderr-wedge.py, line 55
proc = subprocess.Popen([BIN], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=write_fd)
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Pass
No network call found.
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
docs/runtime-tuning.md, line 78
In a Codex config file, the `[mcp_servers.<name>.env]` table sets environment variables for each server:
website/.gitignore, line 12
.DS_Store
website/.gitignore, line 13
.env.local
Show more
website/.gitignore, line 14
.env.development.local
website/.gitignore, line 15
.env.test.local
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
website/package-lock.json, line 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 6f5055493e30. requests shell access. No manifest field names shell or command execution. 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: 6f5055493e301625714ef4eb1c479758a6810996
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