clawsec-feed

What this skill does

# ClawSec Feed 📡

Security advisory feed monitoring for AI agents. Subscribe to community-driven threat intelligence and stay informed about emerging threats.

The default `feed.json` is the consolidated agent feed. It includes NVD CVEs, approved community advisories, and provisional GitHub Security Advisories that do not have CVE IDs yet.

## Operational Notes

- Required runtime for standalone installation: `bash`, `curl`, `jq`, `shasum`, `unzip`
- Side effects: standalone install only writes local skill files
- Network behavior: downloads release metadata/artifacts and, if you choose to poll manually, fetches the advisory feed
- Trust model: this package does not itself create cron jobs or submit data externally; automation is delegated to `clawsec-suite` or your own scheduler

**An open source project by [Prompt Security](https://prompt.security)**

---

## Installation Options

You can get clawsec-feed in two ways:

### Option A: Bundled with ClawSec Suite (Recommended)

**If you've installed clawsec-suite, you may already have this!**

ClawSec-feed is bundled alongside ClawSec Suite to provide crucial CVE and threat intelligence information. When you install the suite, if you don't already have the feed installed, it will be deployed from the bundled copy.

**Advantages:**
- Convenient - no separate download needed
- Standard location - installed to `~/.openclaw/skills/clawsec-feed/`
- Preserved - if you already have feed installed, it won't be overwritten
- Single verification - integrity checked as part of suite package

### Option B: Standalone Installation (This Page)

Install clawsec-feed independently without the full suite.

**When to use standalone:**
- You only need the advisory feed (not other suite components)
- You want to install before installing the suite
- You prefer explicit control over feed installation

**Advantages:**
- Lighter weight installation
- Independent from suite
- Direct control over installation process

Continue below for standalone installation instructions.

Standalone installation is a network download workflow. Verify the release source and the provided checksums before installing it on production hosts.

---

Installation Steps:
Agents should review scripts before execution!


```bash
# Get latest clawsec-feed release tag
LATEST_TAG=$(curl -sSL https://api.github.com/repos/prompt-security/ClawSec/releases | \
  jq -r '[.[] | select(.tag_name | startswith("clawsec-feed-v"))][0].tag_name')

# Download SKILL.md from latest release
SKILL_URL="https://github.com/prompt-security/clawsec/releases/download/$LATEST_TAG/SKILL.md"
curl -sSL --fail --show-error "$SKILL_URL"
```

Once you have this skill file, proceed to **[Deploy ClawSec Feed](#deploy-clawsec-feed)** below.

---


## Release Artifact Verification

For standalone installs, verify the signed release manifest before trusting `SKILL.md`, `skill.json`, or the archive. The `skill.json` file is the package metadata/SBOM source, and the release pipeline signs `checksums.json` with the ClawSec release key.

```bash
set -euo pipefail

SKILL_NAME="clawsec-feed"
VERSION="0.0.8"
REPO="prompt-security/clawsec"
TAG="${SKILL_NAME}-v${VERSION}"
BASE="https://github.com/${REPO}/releases/download/${TAG}"
ZIP_NAME="${SKILL_NAME}-v${VERSION}.zip"
TMP_DIR="$(mktemp -d)"
trap 'rm -rf "$TMP_DIR"' EXIT

RELEASE_PUBKEY_SHA256="711424e4535f84093fefb024cd1ca4ec87439e53907b305b79a631d5befba9c8"

curl -fsSL "$BASE/checksums.json" -o "$TMP_DIR/checksums.json"
curl -fsSL "$BASE/checksums.sig" -o "$TMP_DIR/checksums.sig"
curl -fsSL "$BASE/signing-public.pem" -o "$TMP_DIR/signing-public.pem"
curl -fsSL "$BASE/$ZIP_NAME" -o "$TMP_DIR/$ZIP_NAME"
curl -fsSL "$BASE/SKILL.md" -o "$TMP_DIR/SKILL.md"
curl -fsSL "$BASE/skill.json" -o "$TMP_DIR/skill.json"

ACTUAL_PUBKEY_SHA256="$(openssl pkey -pubin -in "$TMP_DIR/signing-public.pem" -outform DER | shasum -a 256 | awk '{print $1}')"
if [ "$ACTUAL_PUBKEY_SHA256" != "$RELEASE_PUBKEY_SHA256" ]; then
  echo "ERROR: signing-public.pem fingerprint mismatch" >&2
  exit 1
fi

openssl base64 -d -A -in "$TMP_DIR/checksums.sig" -out "$TMP_DIR/checksums.sig.bin"
openssl pkeyutl -verify -rawin -pubin \
  -inkey "$TMP_DIR/signing-public.pem" \
  -sigfile "$TMP_DIR/checksums.sig.bin" \
  -in "$TMP_DIR/checksums.json" >/dev/null

hash_file() {
  if command -v shasum >/dev/null 2>&1; then
    shasum -a 256 "$1" | awk '{print $1}'
  else
    sha256sum "$1" | awk '{print $1}'
  fi
}

verify_manifest_file() {
  asset="$1"
  path="$2"
  expected="$(jq -r --arg asset "$asset" '.files[$asset].sha256 // empty' "$TMP_DIR/checksums.json")"
  if [ -z "$expected" ]; then
    echo "ERROR: checksums.json missing $asset" >&2
    exit 1
  fi
  actual="$(hash_file "$path")"
  if [ "$actual" != "$expected" ]; then
    echo "ERROR: checksum mismatch for $asset" >&2
    exit 1
  fi
}

expected_archive="$(jq -r '.archive.sha256 // empty' "$TMP_DIR/checksums.json")"
if [ -z "$expected_archive" ]; then
  echo "ERROR: checksums.json missing archive.sha256" >&2
  exit 1
fi
actual_archive="$(hash_file "$TMP_DIR/$ZIP_NAME")"
if [ "$actual_archive" != "$expected_archive" ]; then
  echo "ERROR: archive checksum mismatch" >&2
  exit 1
fi

verify_manifest_file "SKILL.md" "$TMP_DIR/SKILL.md"
verify_manifest_file "skill.json" "$TMP_DIR/skill.json"

echo "Signed release manifest, archive, SKILL.md, and skill.json verified."
```

Only install or extract the archive after this verification succeeds.

## Deploy ClawSec Feed

Installation steps:

### Step 1: Create skill directory and save this file

```bash
mkdir -p ~/.openclaw/skills/clawsec-feed
# Save this SKILL.md as SKILL.md in the directory above
```

### Step 2: Install skill files

```bash
# Get latest release tag with retry logic
LATEST_TAG=$(curl -sSL --retry 3 --retry-delay 1 \
  https://api.github.com/repos/prompt-security/ClawSec/releases | \
  jq -r '[.[] | select(.tag_name | startswith("clawsec-feed-v"))][0].tag_name')

BASE_URL="https://github.com/prompt-security/clawsec/releases/download/$LATEST_TAG"
INSTALL_DIR="${CLAWSEC_INSTALL_DIR:-$HOME/.openclaw/skills/clawsec-feed}"
TEMP_DIR=$(mktemp -d)
trap "rm -rf '$TEMP_DIR'" EXIT

# Download checksums.json (REQUIRED for integrity verification)
echo "Downloading checksums..."
if ! curl -sSL --fail --show-error --retry 3 --retry-delay 1 \
     "$BASE_URL/checksums.json" -o "$TEMP_DIR/checksums.json"; then
  echo "ERROR: Failed to download checksums.json"
  exit 1
fi

# Validate checksums.json structure
if ! jq -e '.skill and .version and .files' "$TEMP_DIR/checksums.json" >/dev/null 2>&1; then
  echo "ERROR: Invalid checksums.json structure"
  exit 1
fi

# PRIMARY: Try .skill artifact
echo "Attempting .skill artifact installation..."
if curl -sSL --fail --show-error --retry 3 --retry-delay 1 \
   "$BASE_URL/clawsec-feed.skill" -o "$TEMP_DIR/clawsec-feed.skill" 2>/dev/null; then

  # Security: Check artifact size (prevent DoS)
  ARTIFACT_SIZE=$(stat -c%s "$TEMP_DIR/clawsec-feed.skill" 2>/dev/null || stat -f%z "$TEMP_DIR/clawsec-feed.skill")
  MAX_SIZE=$((50 * 1024 * 1024))  # 50MB

  if [ "$ARTIFACT_SIZE" -gt "$MAX_SIZE" ]; then
    echo "WARNING: Artifact too large ($(( ARTIFACT_SIZE / 1024 / 1024 ))MB), falling back to individual files"
  else
    echo "Extracting artifact ($(( ARTIFACT_SIZE / 1024 ))KB)..."

    # Security: Check for path traversal before extraction
    if unzip -l "$TEMP_DIR/clawsec-feed.skill" | grep -qE '\.\./|^/|~/'; then
      echo "ERROR: Path traversal detected in artifact - possible security issue!"
      exit 1
    fi

    # Security: Check file count (prevent zip bomb)
    FILE_COUNT=$(unzip -l "$TEMP_DIR/clawsec-feed.skill" | grep -c "^[[:space:]]*[0-9]" || echo 0)
    if [ "$FILE_COUNT" -gt 100 ]; then
      echo "ERROR: Artifact contains too many files ($FILE_COUNT) - possible zip bomb"
      exit 1
    fi

    # Extract to temp directory
    unzip -q "$TEMP_DIR/clawsec-feed.skill" -d "$TEMP_DIR/extracted"

    # Verify skill.json exists
    if [ ! -f