Claude Code, Plugin
catalyst
Hand a coding session from one agent to another without losing the thread — typed handoff briefs in your repo, lifecycle hooks that write and resume them on Claude Code, Codex and Antigravity, and CI-graded evals.
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.
SECRETS_PATH_DOTENV OBFUSCATION_ENCODED_BLOB PERMISSION_SHELL_DECLARED
Why this grade
- SECRETS_PATH_DOTENV Low
Mentions a .env file.
.gitignore, line 2
.env - OBFUSCATION_ENCODED_BLOB Low
Contains a long base64 shaped string in a file that should be readable.
skills/handoff/evals/snapshots/1-run2.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNp82gpa31DQg98J7QA1","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat - PERMISSION_SHELL_DECLARED Note
Runs shell commands, and the manifest or description says so.
scripts/catalyst_config.py, line 25
r = subprocess.run(["git", *args], cwd=cwd, capture_output=True,
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
Note
requests shell access. The manifest names this permission.
PERMISSION_SHELL_DECLARED
scripts/catalyst_config.py, line 25
r = subprocess.run(["git", *args], cwd=cwd, capture_output=True,
scripts/eval-grade.py, line 61
proc = subprocess.run(cmd, shell=True, cwd=ws, capture_output=True, text=True, timeout=60)
scripts/eval-grade.py, line 90
proc = subprocess.run(cmd, shell=True, cwd=ws, capture_output=True, text=True, timeout=60)
Show more
scripts/eval-run.py, line 87
return subprocess.run(cmd, capture_output=True, text=True, cwd=cwd).stdout.strip()
scripts/eval-run.py, line 113
subprocess.run(["git", "init", "-q"], cwd=ws, check=True)
scripts/eval-run.py, line 115
subprocess.run(["git", "-c", "commit.gpgsign=false", "commit", "-q", "--allow-empty", "-m", "fixture"], cwd=ws, env=env, check=True)
scripts/eval-run.py, line 117
subprocess.run(["git", "checkout", "-q", "-B", branch], cwd=ws, check=True)
scripts/eval-run.py, line 257
proc = subprocess.run(build_command(host, prompt, ws, model, max_turns), capture_output=True, text=True, cwd=ws)
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
.gitignore, line 1
.DS_Store
.gitignore, line 2
.env
skills/hooks/evals/snapshots/6-run0.jsonl, line 4
{"type":"user","message":{"role":"user","content":[{"type":"text","text":"# Update Config Skill\n\nModify Claude Code configuration by updating settings.json files.\n\n## When Hook
Show more
skills/hooks/evals/snapshots/6-run1.jsonl, line 4
{"type":"user","message":{"role":"user","content":[{"type":"text","text":"# Update Config Skill\n\nModify Claude Code configuration by updating settings.json files.\n\n## When Hook
skills/hooks/evals/snapshots/6-run2.jsonl, line 4
{"type":"user","message":{"role":"user","content":[{"type":"text","text":"# Update Config Skill\n\nModify Claude Code configuration by updating settings.json files.\n\n## When Hook
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Concern
contains an encoded blob in a file that should be readable.
OBFUSCATION_ENCODED_BLOB
skills/handoff/evals/snapshots/1-run2.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNp82gpa31DQg98J7QA1","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots-antigravity/1-run0.jsonl, line 1
{"type": "assistant", "message": {"content": [{"type": "tool_use", "name": "view_file", "host_tool": "view_file", "input": {"AbsolutePath": "/var/folders/g4/cr6bc0b13_q2kdrkwt3j1l0
skills/hooks/evals/snapshots/6-run0.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011Cev6ikKoYKgKBD2WcDkAx","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
Show more
skills/hooks/evals/snapshots/6-run1.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011Cev6nbpCzXUehRk3vfVTA","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/hooks/evals/snapshots/6-run2.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011Cev6rRQzZZhtmFv4FDSEG","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 1
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNovmhNAEFD5vQwRd1Uk","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 5
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNovwcfUUgFsEevhBZ3j","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 8
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNow5WSGPm4cNaGYMQUe","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 13
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNoxHJNVM6g6u2ZdsQaT","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 16
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNoxdV4UpUSpXK2kaaib","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 19
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNoxwVn9aTwm9F2ZC4PN","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 26
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNozUc5Hvv7hfdV5oYaY","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
skills/handoff/evals/snapshots/0-run0.jsonl, line 38
{"type":"assistant","message":{"model":"claude-sonnet-5","id":"msg_011CfNp1jPM5AqKyDPxDKUHw","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signat
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 3c3723794012. requests shell access. The manifest names this permission. reads a credential or environment file. contains an encoded blob in a file that should be readable.
Date and source
Date checked:
github.com
Commit graded: 3c3723794012625fd1b8f8c42c70ad58964e2e1b
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.