ghost-scan-code

Static analysis security scanner that identifies OWASP vulnerabilities across backend, frontend, mobile, and library code. Scans for SQL injection, XSS, BOLA, BFLA, SSRF, prototype pollution, unsafe deserialization, ReDoS, path traversal, and zip slip vulnerabilities Three scan depths available: quick (default), balanced, and full, with token usage warnings for comprehensive scans Automated workflow: plans vulnerability vectors per project type, nominates candidate files, analyzes findings, and verifies results with detailed reporting Caches scan results by repository and commit hash to avoid redundant analysis

INSTALLATION
npx skills add https://github.com/ghostsecurity/skills --skill ghost-scan-code
Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

$2c

Step 1: Setup

Compute the repo-specific output directory:

repo_name=$(basename "$(pwd)") && remote_url=$(git remote get-url origin 2>/dev/null || pwd) && short_hash=$(printf '%s' "$remote_url" | git hash-object --stdin | cut -c1-8) && repo_id="${repo_name}-${short_hash}" && short_sha=$(git rev-parse --short HEAD 2>/dev/null || date +%Y%m%d) && ghost_repo_dir="$HOME/.ghost/repos/${repo_id}" && scan_dir="${ghost_repo_dir}/scans/${short_sha}/code" && cache_dir="${ghost_repo_dir}/cache" && mkdir -p "$scan_dir" && echo "scan_dir=$scan_dir cache_dir=$cache_dir"
  • Read $cache_dir/repo.md — if missing, run the repo-context skill first and then continue.
  • Set depth to quick if not provided
  • If depth is full, warn the user that a full scan uses significantly more tokens and ask them to confirm before proceeding. If they decline, fall back to balanced.

Step 2: Plan Scans

If $scan_dir/plan.md already exists, skip to the next step.

Otherwise, run the planner using scripts/loop.sh:

bash <path-to-loop.sh> $scan_dir planner.md "- depth: <depth>

- arguments: <relevant argument overrides if any, otherwise omit>" 1 $cache_dir

Use a 10-minute timeout. If the command times out, re-run it — the script resumes from where it left off. If it fails 3 times consecutively with the same error, stop and report the failure.

Verify: $scan_dir/plan.md exists and contains at least one ## Project: section before proceeding.

Step 3: Nominate Files

If $scan_dir/nominations.md does not exist, generate it by reading $scan_dir/plan.md and for each project section (## Project: <base_path> (<type>)), parse the Recommended Scans table. For each row, extract the Agent and Vector columns. Write $scan_dir/nominations.md - one line per (project, agent, vector) combination. Skip projects with empty scan tables.

# Nominations

- [ ] <base_path> (<type>) | <agent> | <vector>

- [ ] <base_path> (<type>) | <agent> | <vector>

...

If $scan_dir/nominations.md already exists, change every top level task - [x] to - [ ]. Keep all indented lines/subtasks beneath each item unchanged.

Run nomination script

Using scripts/loop.sh:

bash <path-to-loop.sh> $scan_dir nominator.md "- depth: <depth>

- arguments: <relevant argument overrides if any, otherwise omit>" 5 $cache_dir

Use a 10-minute timeout. If the command times out, re-run it — the script resumes from where it left off. If it fails 3 times consecutively with the same error, stop and report the failure.

Verify: $scan_dir/nominations.md contains at least one - [x] line before proceeding.

Step 4: Analyze Nominated Files

Read $scan_dir/nominations.md. For each candidate file under a checked - [x] line, append to $scan_dir/analyses.md (skip candidates already listed in analyses.md).

- [ ] <base_path> (<type>) | <agent> | <vector> | <candidate_file>

Create the findings directory:

mkdir -p $scan_dir/findings

Run analysis script

Using scripts/loop.sh:

bash <path-to-loop.sh> $scan_dir analyzer.md "" 5 $cache_dir

Use a 10-minute timeout. If the command times out, re-run it — the script resumes from where it left off. If it fails 3 times consecutively with the same error, stop and report the failure.

Verify: $scan_dir/analyses.md contains at least one - [x] line before proceeding.

Step 5: Verify Findings

List all .md files in $scan_dir/findings/. If none exist, write a no-findings.md summary and stop.

Using scripts/loop.sh:

bash <path-to-loop.sh> $scan_dir verifier.md "" 5 $cache_dir

Use a 10-minute timeout. If the command times out, re-run it — the script resumes from where it left off. If it fails 3 times consecutively with the same error, stop and report the failure.

Completion

After all steps complete, report the scan results:

  • List all finding files in $scan_dir/findings/
  • Count verified vs rejected findings
  • Present a summary to the user
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