Skill Scanner

Security Scanner for Agent Skills

Agent Skills Python Listed NOASSERTION

Is Skill Scanner safe? Strong public trust posture, backed by multiple independent signals.

OSSF Scorecard 6.4 / 10
Provenance Attested
Signed commits 100%
Last push yesterday
Advisories None known
Compare Skill Scanner
Suggest a correction

In detail: Skill Scanner scores 85.5/100 (Grade A), ranked #9 of 385 tracked open-source AI agent projects, on evidence coverage B (3 of 5 independent signal types). The public evidence: its packages ship with cryptographic provenance; OSSF Scorecard rates its supply-chain practices 6.4/10; 100% of recent commits are signed; no published advisory affects its latest release (cisco-ai-skill-scanner); last pushed 2026-10-15. Every point is earned from checkable signals — never paid placement. How scoring works →

How Skill Scanner could raise its score

Each line changes one public signal and recomputes with the live scoring function. The gains don't add up exactly, because the score is capped near the top.

Chain of custody

Scanners check what the code says. This traces who ships Skill Scanner and whether that has changed: from the source repository, through how changes are reviewed and released, to the package you install. These are the checks for OWASP ASI04 Agentic Supply Chain Vulnerabilities and, for skills, AST02 Supply Chain Compromise.

  1. Source Signed

    github.com/cisco-ai-defense/skill-scanner, NOASSERTION, last pushed 2026-10-15. 100% of the last 100 commits carry a verified signature, so changes trace to a verified account.

  2. Review and release Mixed

    OpenSSF Scorecard rates the repository's practices 6.4/10 (scanned Oct 10, 2026). The checks that decide who can get a change released:

    • Code Review4
    • Branch Protection8
    • Signed Releases0
    • Dangerous Workflow10
    • Token Permissions9
    • Pinned Dependencies0
    All 18 Scorecard checks
    Binary-Artifacts 10
    Branch-Protection 8
    CI-Tests 10
    CII-Best-Practices 0
    Code-Review 4
    Contributors 3
    Dangerous-Workflow 10
    Dependency-Update-Tool 0
    Fuzzing 0
    License 9
    Maintained 10
    Packaging 10
    Pinned-Dependencies 0
    SAST 6
    Security-Policy 10
    Signed-Releases 0
    Token-Permissions 9
    Vulnerabilities 10
  3. Published packages Linked and attested

  4. What you install today No known advisories

    Latest release checked: cisco-ai-skill-scanner 2.3.0. No published advisory affects it (OSV, checked 2026-10-16).

Changes to this chain

  • 2026-09-23 Package provenance attestation detected
  • 2026-08-26 OSSF Scorecard: 6.1/10

Evidence behind this score

Coverage B: 3 of 5 independent evidence types found.

  • GitHub repository data
  • Package downloads
  • Supply-chain checks
  • Public actions (missing)
  • Community mentions (missing)

Verify this score yourself

Every build re-issues Skill Scanner’s score as an Ed25519-signed credential, valid for 7 days. You can check it offline against HVTracker’s published key; if anyone changes a number after signing, verification fails.

What this score doesn’t check

It covers who ships the code, not what the code does. It doesn’t read the skill’s instructions for injected instructions, watch runtime behaviour, or find bugs nobody has disclosed yet. For that, run a content scanner before you install it, such as Cisco Skill Scanner.

How Skill Scanner compares in Agent Skills

  1. #7 Cc Safety Net 87.0 +1.5
  2. #8 MisakaNet 86.2 +0.7
  3. #9 Skill Scanner 85.5 this agent
  4. #10 Oh My Claudecode 85.0 −0.5
  5. #11 Claudecodeui 84.2 −1.3

Bars show each HVTrust score; the tick marks Skill Scanner’s 85.5.

Where the 85.5 comes from

HVTrust dimensions vs the Agent Skills average

85.5 / 100 · 100.0% confidence

Skill Scanner Agent Skills average (385 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
20.5 / 25
12.7 above avg 7.8
Identity / Provenance60% listing status · 40% build provenance
18.0 / 18
6.6 above avg 11.4
Transparency50% declared license · 50% OSSF Scorecard
13.9 / 17
1.9 above avg 12.0
Maintenance60% last-push freshness · 40% commit activity
18.3 / 20
4.2 above avg 14.1
AdoptionLog-scaled stars · package downloads
14.9 / 20
5.9 above avg 9.0

Quick Trust Read

What Would Improve It
Improve adoption to lift the weakest part of the trust profile.
Recent Changes
2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: Amazon Bedrock, Anthropic, Google Gemini, Multi-provider (LiteLLM), OpenAI
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → A
Maintainer Checklist
Raise Scorecard signals Current OSSF Scorecard is 6.4/10. Tighten the weakest checks to improve public safety evidence.
77.2
Activity sub-score · out of 100
#9

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade A reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage B is separate — it grades how many independent signal types back the score (3 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-10-16 16:07 UTC · Repo last pushed yesterday

Rank Trend

2026-09-29 2026-10-16

Activity & Reach

Stars
2.6k
Forks
333
Last Push
2026-10-15
yesterday
Commits (4 wk)
39
Downloads (7d)
105,468
pypi
HN mentions (30d)
—
Open Issues
0
Rank Change
=
was #9

Analysis

Activity Inputs

77.2 / 100
StarsRepository reach
20.5 / 30
FreshnessLast push recency
24.9 / 25
ActivityRecent commits
20.0 / 25
CommunityFork signal
11.7 / 20

Common questions about Skill Scanner

Public supply-chain signals for Skill Scanner are strong: it has multiple independent trust indicators in place. This does not replace your own security review, but Skill Scanner carries less obvious unverified-evidence risk than projects with thin signals.
Does Skill Scanner publish package provenance?
Yes. Skill Scanner's package releases carry build provenance attestations, which cryptographically link the published package back to its source repository and CI workflow.
Does Skill Scanner have an OpenSSF Scorecard?
Skill Scanner has an OpenSSF Scorecard score of 6.4/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.
Is Skill Scanner actively maintained?
Actively maintained. The repository was pushed to within the last 1 day(s).
What license does Skill Scanner use?
Skill Scanner ships under NOASSERTION. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are Skill Scanner's commits signed?
100% of the last 100 commits to Skill Scanner are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface
Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support
None detected
No MCP server signal detected.
Detailed evidence is not shown in the public view.
External Service Dependencies
high confidence
5 detected
Public provider/service dependencies detected.
Credential signal: API keys or service config markers documented.
Tool / Plugin Surface
None detected
No clear plugin system or broad tool surface detected.
Detailed evidence is not shown in the public view.
Package Provenance Drift
high confidence
Match
Published package metadata matches the tracked repo
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live
How this surface has changed

Detected changes to Skill Scanner's runtime surface and supply-chain posture, from daily public-signal snapshots. A change here means our detectors see something different — a genuinely changed capability, or better evidence of an existing one.

2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: Amazon Bedrock, Anthropic, Google Gemini, Multi-provider (LiteLLM), OpenAI
2026-09-23
Provenance Added
Package provenance attestation detected

Maintain Skill Scanner?

For maintainers

HVTrust scores Skill Scanner from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Reputation Timeline

Signal history
Rank 8HVTrust 3Grade 3Listed 2Score 2Scorecard 1Delisted 1Provenance 1Surface 1
2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: Amazon Bedrock, Anthropic, Google Gemini, Multi-provider (LiteLLM), OpenAI
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → A
2026-09-23
Rank Moved
Rank rose 231 spots (#246 → #15)
2026-09-23
HVTrust Changed
HVTrust up 50.6pts (32.0 → 82.6)
2026-09-22
Newly Listed
First tracked at rank #246
2026-09-21
Removed From Active Tracking
Removed from active tracking
2026-09-02
Grade Changed
Trust grade C → A
2026-09-02
Rank Moved
Rank rose 124 spots (#127 → #3)
2026-09-02
HVTrust Changed
HVTrust up 30.1pts (52.5 → 82.6)
2026-09-02
Activity Score Changed
Activity score down 6pts (74 → 68)
2026-09-01
Activity Score Changed
Activity score up 5pts (69 → 74)
2026-08-31
Rank Moved
Rank dropped 18 spots (#110 → #128)
2026-08-30
Rank Moved
Rank dropped 17 spots (#93 → #110)
2026-08-29
Rank Moved
Rank dropped 20 spots (#73 → #93)
2026-08-28
Rank Moved
Rank dropped 17 spots (#56 → #73)
2026-08-27
Rank Moved
Rank dropped 15 spots (#41 → #56)
2026-08-26
Scorecard Added
OSSF Scorecard: 6.1/10
2026-08-26
Grade Changed
Trust grade D → C
2026-08-26
Rank Moved
Rank dropped 26 spots (#15 → #41)
2026-08-26
HVTrust Changed
HVTrust up 8.5pts (42.7 → 51.2)
2026-08-11
Newly Listed
First tracked at rank #13

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 85.5 Grade A
Markdown:
[![HVTrust](https://hvtracker.net/badge/skill-scanner.svg)](https://hvtracker.net/agents/skill-scanner)
HTML:
<a href="https://hvtracker.net/agents/skill-scanner"><img src="https://hvtracker.net/badge/skill-scanner.svg" alt="HVTrust"></a>

Other agents in Agent Skills

Data sources
GitHub REST API (repo, commits, stars, forks, license) · PyPI / pypistats (downloads, provenance) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.4 · Raw JSON