MCP, MCP server
cairntir
Memory-first reasoning layer for Claude Code.
Compatibility: Not stated.
Grade C
One Medium finding. Read the report before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
PERMISSION_SHELL_UNDECLARED
Why this grade
- PERMISSION_SHELL_UNDECLARED Medium
Runs shell commands that the manifest or description does not mention.
plans/v2-foundation-round1-wal-probe.py, line 148
child_result = subprocess.run( # noqa: S603 - fixed synthetic child and isolated paths
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. can delete files.
PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES
plans/v2-foundation-round1-wal-probe.py, line 148
child_result = subprocess.run( # noqa: S603 - fixed synthetic child and isolated paths
plans/acceptance/backup-contract-20261002/original_test_automatic_backups.py, line 256
shutil.rmtree(destination)
plans/acceptance/backup-contract-20261002/original_test_automatic_backups.py, line 535
return subprocess.run( # noqa: S603 - explicit isolated test entry point
Show more
plans/acceptance/backup-contract-20261002/original_test_automatic_backups.py, line 548
result = subprocess.run( # noqa: S603 - explicit isolated test entry point
plans/acceptance/backup-contract-20261002/original_test_automatic_backups.py, line 564
self.process = subprocess.Popen( # noqa: S603 - explicit isolated test entry point
plans/acceptance/core-status-20261001/test_status_metadata.py, line 75
original_run = subprocess.run
plans/acceptance/core-status-20261001/test_status_metadata_v2.py, line 76
original_run = subprocess.run
plans/acceptance/core-status-20261001/test_status_metadata_v3.py, line 77
original_run = subprocess.run
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
scripts/check_release_tags.py, line 111
with urllib.request.urlopen(request, timeout=30) as response: # noqa: S310
scripts/check_release_tags.py, line 121
payload = json.loads(fetch(PYPI_PACKAGE_URL))
src/cairntir/update.py, line 164
with urllib.request.urlopen( # noqa: S310 - same as above
Show more
src/cairntir/production/llm.py, line 154
with urllib.request.urlopen(request, timeout=self.timeout) as response: # noqa: S310
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
.gitignore, line 25
# Virtual environments
lineage/brainstormer/brainstormer-CLAUDE.md, line 167
- .env files (sensitive data)
lineage/brainstormer/quality-SKILL.md, line 215
Checks for dangerous patterns: .env not in .gitignore (P0, -30 points), build artifacts
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. the file cap was reached before every file was read.
OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED
uv.lock, line 1
version = 1
plans/portable-v2-v6.fixture, line 1
SQLite format 3 @ L .v� � �
tests/acceptance/test_automatic_backups.py, line 1
"""Independent automatic-backup contract; real stores, copies, locks and transports."""
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 b60c2fbc537b. requests shell access. No manifest field names shell or command execution. can delete files. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.
Date and source
Date checked:
github.com
Commit graded: b60c2fbc537b6fcb284aa14f8023b3170f720822
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.