Huawei Cloud Skill Audit

Two-check security pipeline for auditing Huawei Cloud skills — security gate.

Overview

Scan a single Huawei Cloud skill directory or a folder of skills, run two security gates, and generate a structured report with issue details and fix strategies.

Two checks:

#	Tool	Check Content	Implementation
1	skillspector	AI skill security scanner: 47 rules / 439 patterns across 17 categories (prompt injection, data exfiltration, privilege escalation, supply chain, behavioral AST, taint tracking, MCP analysis, YARA)	Built-in (pure Python, 47 rules + AST analysis)
2	gitleaks	Credential leak scan: 222 rules detecting hardcoded API keys, passwords, private keys, tokens, and 800+ credential formats	Built-in (pure Python, 222 rules + Shannon entropy)

Prerequisites

Python 3.10+ — for the built-in skillspector and gitleaks checks
Node.js + npx — Optional; only needed for manual
```
markdownlint-cli2 --fix
```
during remediation
hcloud CLI — For Huawei Cloud service verification (optional, used in verification only)
Huawei Cloud AK/SK — Not required for audit itself, but needed if verifying skill functionality after audit

skillspector and gitleaks are built-in (pure Python) — no external binary or pip install needed. External binaries are used as fallback if available on PATH.

To skip fallback auto-install of external binaries, use

--no-install

flag.

Workflow

Input (skill path or folder)
    │
    ├── Discover Skills ──── Find SKILL.md in target or subdirectories
    │
    ├── Run Two Checks ────
    │   1. skillspector → AI security scan (47 rules, 439 patterns)
    │   2. gitleaks → Credential leak detection
    │
    ├── Build Report ────
    │   Section 1: Scanned Skills
    │   Section 2: Issue Summary (by severity)
    │   Section 3: Issue Details (per-issue)
    │   Section 4: Fix Strategies (per rule/category)
    │
    └── Gate Verdict ──── PASS or FAIL

Scan Levels

Level	Analyzers	Speed	Use Case
`critical`	CRITICAL severity rules only (P5 harmful content)	Fast	Strictest gate, default
`high`	CRITICAL + ERROR severity rules	Fast	Block high-risk issues
`quick`	Pattern matching only (all static regex rules)	Fast	Quick pre-commit check
`standard`	All static analyzers (quick + AST + taint tracking)	Medium	CI/CD gate
`deep`	Standard + MCP analysis (least privilege, tool poisoning, rug pull)	Slower	Pre-release full audit

Severity filtering applies only to SkillSpector. gitleaks always reports all findings regardless of scan level.

KooCLI Command Format Standard

This skill does not directly invoke

hcloud

CLI commands. It audits skill directories locally. However, when verifying a skill's functionality after audit, the standard KooCLI format applies:

bash

hcloud <Service> <Operation> --cli-region=<region> [--key=value ...]

Core Commands

Scan a single skill

bash

python3 scripts/skill_audit.py --target /path/to/my-skill

Scan a folder of skills

bash

python3 scripts/skill_audit.py --target /path/to/skills-folder

Scan with specific level

bash

python3 scripts/skill_audit.py --target /path/to/skills --scan-level quick

Selective check execution

bash

python3 scripts/skill_audit.py --target /path/to/skills --checks skillspector
python3 scripts/skill_audit.py --target /path/to/skills --skip-checks gitleaks

Run with custom tool paths

bash

python3 scripts/skill_audit.py \
  --target /path/to/skill-or-folder \
  --scan-level standard \
  --skillspector /path/to/skillspector \
  --gitleaks /path/to/gitleaks \
  --node-bin /opt/nvm/versions/node/v18.20.8/bin

Available

--scan-level

values:

critical

(default),

high

quick

standard

deep

. Available

--checks

skillspector

gitleaks

. Use

--skip-checks

to exclude specific checks.

Parameter Confirmation

Parameter	Required	Description	Example
`--target`	Yes	Single skill dir or parent folder of skills	`/home/user/.hermes/skills/huawei-cloud-ecs-manage`
`--output-dir`	No	Report output directory (default: parent of target)	`--output-dir ./reports`
`--scan-level`	No	Scan depth: critical/high/quick/standard/deep (default: critical)	`--scan-level deep`
`--checks`	No	Comma-separated checks to run (default: all)；可用值仅 `skillspector` , `gitleaks` 。与 `--skip-checks` 互斥，不可同时使用	`--checks skillspector`
`--skillspector`	No	SkillSpector binary path override	`--skillspector /usr/local/bin/skillspector`
`--gitleaks`	No	gitleaks binary path override	`--gitleaks /usr/local/bin/gitleaks`
`--skip-checks`	No	Comma-separated checks to skip；与 `--checks` 互斥，不可同时使用	`--skip-checks gitleaks`
`--no-install`	No	Skip auto-install of tools	`--no-install`

Report Structure

Report is saved as

skill-gate-report-<timestamp>.txt

in the parent directory of the scanned path.

Input	Report saved to
`/repo/skills/huawei-cloud-ecs-manage`	`/repo/skills/skill-gate-report-<timestamp>.txt`
`/repo/skills`	`/repo/skill-gate-report-<timestamp>.txt`

Four sections:

Scanned Skills — list of all skills found
Issue Summary — count by severity (CRITICAL/ERROR/WARNING) with rule breakdown (INFO excluded)
Issue Details — per-issue: skill name, rule, line number, snippet, message
Fix Strategies — actionable remediation for each unique rule/category

Fix Strategies Reference

skillspector

Rule	Fix
P1-P5 (Prompt Injection)	Do not embed user-controllable input in system prompts; use template variables with explicit escaping
E1-E4 (Data Exfiltration)	Remove external URLs; use env vars for API endpoints; restrict network access in tool definitions
PE1-PE3 (Privilege Escalation)	Avoid sudo/root commands; use capability-based permissions; do not disable security controls
AST1-AST3 (Behavioral AST)	Replace exec()/eval() with safer alternatives; use importlib with allowlists
YR1-YR4 (YARA)	Remove reverse shell/webshell patterns; move server functionality to separate controlled service
SC1-SC6 (Supply Chain)	Pin dependency versions with hashes; update vulnerable dependencies
LP1-LP4 (MCP Least Privilege)	Reduce MCP tool permissions to minimum required
TP1-TP4 (MCP Tool Poisoning)	Validate MCP tool metadata against manifest

gitleaks

Rule	Fix
generic-api-key	Replace hardcoded API key/secret with `os.environ.get("VAR")` or `${VAR}` ; add to `.gitleaksignore` if false positive
private-key	Remove hardcoded private key; load from file or secret manager at runtime; add key file to `.gitignore`
(other rules)	Replace hardcoded credential with environment variable or secret manager reference; see https://gitleaks.io/docs/secrets

Remediation Workflow (audit -> fix -> verify)

After running the audit and getting a FAIL, follow this sequence:

Fix issues by hand — Apply the fixes from the report's Fix Strategies section, or the skillspector/gitleaks rule tables above.
Re-run the full audit to verify PASS.

Markdown style and SKILL.md spec issues are not audited by this skill; use external tools like
markdownlint-cli2 --fix
only if you need to fix markdown style separately.

CI/CD Integration

yaml

jobs:
  skill-gate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.12'
      - name: Run audit
        run: python3 scripts/skill_audit.py --target . --output-dir .
      - name: Upload report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: skill-gate-report
          path: skill-gate-report-*.txt

Configuration Files

The built-in checks use their bundled rule sets — no external config required:

```
scripts/checks/skillspector_rules.json
```
— skillspector rules (47 rules / 439 patterns)
```
scripts/checks/gitleaks_rules.json
```
— gitleaks rules (222 rules)

.markdownlint.json

and

skillcheck.toml

shipped with the skill directory are not consumed by this audit; they are only for external markdownlint/skillcheck tooling.

Security Scanning

Why skillspector static-only mode has limitations

skillspector

runs with

--no-llm

mode (static analysis only). Gaps:

Analyzer	What it detects	What it MISSES in --no-llm mode
Pattern matching (P1-P5, E1-E4, PE1-PE3)	Prompt injection, data exfiltration, privilege escalation patterns	LLM-generated obfuscated variants
AST analysis (AST1-AST3)	exec()/eval() calls, dynamic imports	Runtime-evaluated strings
YARA rules (YR1-YR4)	Reverse shell, webshell patterns	Encoded/obfuscated payloads
Supply chain (SC1-SC6)	Vulnerable/pinned dependency issues	Transitive dependency exploits

Complementary tools

Tool	Detects	Install
skillspector (built-in, --no-llm)	Prompt injection, reverse shell, command injection, data exfiltration, privilege escalation, supply chain	Auto-installed
gitleaks (built-in)	800+ credential types: API keys, passwords, private keys, tokens	Auto-installed
gitcode-security-scanner	Generic keyword credentials, Chinese keywords, SQL injection, debug leakage	From DTSE-SKILL repo

Recommended: Run both

huawei-cloud-skill-audit

AND

gitcode-security-scanner

for complete coverage.

Output Format

Report is a plain text file with four sections (Scanned Skills, Issue Summary, Issue Details, Fix Strategies) followed by a Gate Verdict (PASS/FAIL).

Verification Method

Run audit

bash

python3 scripts/skill_audit.py --target /path/to/skill

Verify fix

bash

# Fix issues from the report's Fix Strategies section, then re-run audit
python3 scripts/skill_audit.py --target /path/to/skill

Check gate verdict

bash

# Gate Verdict: PASS = all checks passed
# Gate Verdict: FAIL = one or more checks have issues

Reference Documents

```
references/iam-policies.md
```
— IAM permissions required for skill audit
```
references/verification-method.md
```
— Detailed verification procedures
```
references/acceptance-criteria.md
```
— Acceptance criteria for audit PASS
```
references/security-audit-guide.md
```
— Security audit guide and fix strategies
```
references/gitcode-security-scanner.md
```
— Complementary scanner usage guide

Best Practices

Run audit before accepting any Huawei Cloud skill contribution
Fix issues per the report's Fix Strategies, then always re-run full audit to verify PASS
For large repos, scan individual skills one at a time to avoid huge reports

Run both

huawei-cloud-skill-audit

and

gitcode-security-scanner

for complete security coverage

Notes

本 skill 仅生成审计报告和修复策略，不自动修改任何技能文件；修复由用户按报告 Fix Strategies 或 Remediation Workflow 手动执行，修复后需重新运行审计验证
Two-check pipeline runs sequentially; each check is independent
API endpoints are strictly prohibited from being inferred
Credentials (AK/SK) are read from environment variables; hardcoding is prohibited
If AK/SK is missing for post-audit verification, prompt the user; do not skip
Resources created during testing must be tracked; output manual cleanup instructions if any remain
INFO-level issues are excluded from the report; only CRITICAL/ERROR/WARNING appear
gitleaks
```
--no-git
```
mode scans current file contents only, not git history
gitleaks does not detect Chinese keyword credentials; use gitcode-security-scanner for those

Edge Cases

Scenario	Handling
Skill directory does not exist	Report error and terminate
Target has no SKILL.md and no subdirs with SKILL.md	Report error: no skills found
Built-in rules file missing	Auto-download fallback binary (skillspector/gitleaks)
Python version < 3.12	External skillspector binary not available; builtin still works
Large repo produces huge report	Scan individual skills; use head/tail to read summary
gitleaks false positive	Add to .gitleaksignore file
skillspector exit code 1	Risk score > 50; treated as finding source, not hard failure

Design Principles

Two-Check Pipeline — Each check is independent and contributes to the overall gate verdict
Auto-Install — Missing tools are installed automatically on first run
Chain Verification — All enabled checks must pass for gate verdict PASS
Agent-proof — Write operations require user confirmation; automatic gate bypassing is not allowed
Data-Driven — Report is structured text with clear severity levels and fix strategies
Batch Repeatable — Same skill can be audited repeatedly; --fresh resets
Credential Security — No hardcoded AK/SK; read from environment variables
Least Privilege — IAM policies follow minimum required permissions

huawei-cloud-skill-audit

NPX Install

Tags

SKILL.md Content

Huawei Cloud Skill Audit

Overview

Prerequisites

Workflow

Scan Levels

KooCLI Command Format Standard

Core Commands

Scan a single skill

Scan a folder of skills

Scan with specific level

Selective check execution

Run with custom tool paths

Parameter Confirmation

Report Structure

Fix Strategies Reference

skillspector

gitleaks

Remediation Workflow (audit -> fix -> verify)

CI/CD Integration

Configuration Files

Security Scanning

Why skillspector static-only mode has limitations

Complementary tools

Output Format

Verification Method

Run audit

Verify fix

Check gate verdict

Reference Documents

Best Practices

Notes

Edge Cases

Design Principles