SKILLEMALL.ai

FD fastclaw-deployer

FastClaw是一款轻量级AI Agent运行时工具,支持通过OpenClaw Skills生态安装,提供内置Web界面、SOUL.md兼容、多模型支持等功能。

Not recommendedcritical or high security findings · low grade F
ClawHub Agent Skills author: yesong-Hue v1.2.0 MIT-0 6 files · 1 script body ≈ 52 tokens Open the sourceclawhub.ai↗ analyzed 14 d ago

FastClaw是一款轻量级AI Agent运行时工具,支持通过OpenClaw Skills生态安装,提供内置Web界面、SOUL.md兼容、多模型支持等功能。

As a process D 35/100 · Unfinished process — weak spots: steps, result and completion, when it triggers

ReferenceAI and agentstype and topics are labelled automatically from the skill text
JSON
Technical rating
F
45/100
safety, quality, tests
Safety 60%
49
Quality 40%
38
Run on models
none yet
Process rating
D
35/100
Unfinished process
Result and completion w 14
0
Inputs and preconditions w 11
0
Failures and branches w 10
0
the three weakest of ten parameters · all ten

What is at stake

The skill contains fragments that, in the wrong hands, cost money or data. Below: what the installer risks and what the author should do.

Dangerous commands
If you install

The skill contains commands that delete files, rewrite disks or execute code fetched from the network. The agent may run them without asking if it believes the instructions require it.

For the author

Replace destructive commands with safe equivalents that ask for confirmation, scope them to one folder, and stop piping curl into a shell: pin a version and a checksum.

Broad scope medium severity

Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.

If you install

The skill asks for more than the task needs: broad tool access, credential environment variables, binaries. Every extra permission widens the damage from a mistake or a compromise.

For the author

Narrow allowed-tools and the variable list to the minimum; replace binaries with readable sources or scripts.

How to improve

  1. Address the high-severity findings: each costs 18 safety points. If one is a false positive, add the rule id to guard.allow in spec.yaml.
  2. Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 10

  • high Dangerous commands cmd-pipe-to-shell skill-card.md:27
    Downloads and executes remote code from an unrecognised host (pipe to shell)
    Mitigation: Prefer manual, version-pinned downloads; inspect installer contents before execution; avoid running curl | bash or irm | iex in an Administrator or root shell.
Medium and low: 9
  • medium Dangerous commands cmd-pipe-to-shell-known-host README.md:85
    Pipe-to-shell installer from a well-known host (still executes remote code)
    curl -fsSL https://raw.githubusercontent.com/fastclaw-ai/fastclaw/main/install.sh | bash
  • medium Dangerous commands cmd-privilege README.md:105
    Privilege escalation / world-writable permissions
    sudo mv fastclaw /usr/local/bin/
  • medium Dangerous commands cmd-privilege README.md:109
    Privilege escalation / world-writable permissions
    sudo mv fastclaw /usr/local/bin/
  • medium Dangerous commands cmd-privilege README.md:254
    Privilege escalation / world-writable permissions
    sudo rm /usr/local/bin/fastclaw
  • medium Dangerous commands cmd-pipe-to-shell-known-host README.md:268
    Pipe-to-shell installer from a well-known host (still executes remote code)
    curl -fsSL https://raw.githubusercontent.com/fastclaw-ai/fastclaw/main/install.sh | bash
  • medium Broad scope meta-agent-memory-dump templates/SOUL.md
    Agent memory / workspace files bundled with the skill (1) — likely a workspace dump with personal data or tokens
    templates/SOUL.md
  • low Dangerous commands cmd-pipe-to-shell-known-host scripts/install.sh:4
    Pipe-to-shell installer from a well-known host (still executes remote code) (code comment)
    # curl -fsSL https://raw.githubusercontent.com/fastclaw-ai/fastclaw/main/install.sh | bash
    comment
  • low Dangerous commands cmd-privilege scripts/install.sh:61
    Privilege escalation / world-writable permissions (string literal in code, not executed)
    echo "  sudo mv ${INSTALL_DIR}/fastclaw /usr/local/bin/fastclaw"
    code literal
  • low Dangerous commands cmd-privilege scripts/install.sh:70
    Privilege escalation / world-writable permissions (string literal in code, not executed)
    echo "  sudo mv ${INSTALL_DIR}/fastclaw /usr/local/bin/fastclaw"
    code literal

Files scanned: 6. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning description-no-when description does not say WHEN to use the skill (no "use when")
  • note frontmatter-key unknown frontmatter key "homepage"
  • note frontmatter-key unknown frontmatter key "readme"

Process rating: all ten parameters 35/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Failures and branches. Linear process with no failure handling
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 25Steps. 1 steps
  • 30Running it twice. 1 mutating operations with no state check
  • 40Consistency. Frontmatter name (fastclaw-deployer) differs from the folder (fastclaw-ai-deployer)
  • 100Tools and files. No external tools needed
  • 100Execution cost. Instruction body is 52 tokens

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +5Description has no quoted example phrases that should trigger the skill
  • +4Description does not say when NOT to use the skill (false activations)
  • +3Description length 81: 120–800 characters recommended
  • +4Structure: 2 headings, hard to scan
  • +3No numbered steps or checklist
  • +3Output format is not stated: the model decides each time
  • +4No input/output examples
  • -15SKILL.md body under 300 characters: nearly empty
  • -31 of 1 scripts are never mentioned in SKILL.md
  • +1No license
  • +2Single-language instructions

Quality base 70; lint remarks subtract, signals add up to 100. Result: 38.

External checks

ClawHub: suspicious
This FastClaw deployment skill is coherent, but its installer guidance asks users to run mutable remote scripts and unverified binaries with elevated privileges.
LLM: suspicious (high) · VirusTotal: · 16 Sept 2026