yumfu

github.com/clawhub.ai/yumfu
Verdict: Generally safe
0 critical0 high4 medium
B
SCORE 75 / 100
$skillox install yumfuSoon
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Why grade B?

score · 75 / 100

The current grade reflects 4 medium findings (3+ MEDs → B).

0 CRIT0 HIGH4 MED0 LOW
To reach a higher grade
  • A
    Reach Atarget score 95

    Resolve 2 of 4 MED (cap is 2).

Thresholds are documented at /docs/grading. Source-of-truth is the grade() function in @skillox/scanner.

Latest scan findings

Scan crawl-gvubi587ie1e2aefp4zf1vhh · Thu, 28 May 2026 16:34:27 GMT · 22ms

med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 833CWE-78
▾
831# 1. Load existing save (or detect new user)
832# Note: user_id should be validated/sanitized by OpenClaw before reaching this point
833result = exec({← spawns a subprocess outside declared capabilities
834 "command": f"uv run ~/clawd/skills/yumfu/scripts/load_game.py --user-id {user_id} --universe {universe} --quiet"
835})
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 848CWE-78
▾
846# 3. Save back using stdin (avoids command injection)
847save_json = json.dumps(save_data["data"])
848result = exec({← spawns a subprocess outside declared capabilities
849 "command": f"uv run ~/clawd/skills/yumfu/scripts/save_game.py --user-id {user_id} --universe {universe}"
850})
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 1980CWE-78
▾
1978```python
1979# 1. Generate HTML storybook first
1980result = exec({← spawns a subprocess outside declared capabilities
1981 "command": "uv run ~/clawd/skills/yumfu/scripts/generate_storybook_v3.py --user-id 1309815719 --universe warrior-cats"
1982})
med
No capability manifest declared
The skill ships without a `manifest.yaml` or `capabilities` block in its frontmatter. Without a manifest, the runtime cannot enforce what this skill is permitted to do.
rule: no-manifest
▾
View latest scan →
skillox.io/c/yumfu