Is a4a safe to install?

No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.

How was this score calculated?

Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.

Is this report current?

It was made from commit e8d346b on 2026-10-26. If the skill has changed since, paste the new version into the scanner for a fresh score.

I wrote this skill. Can I fix the score or have the page removed?

Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

Scan reports · sickn33/agentic-awesome-skills

a4a: scan report

Connect your AI agent to the A4A end-to-end encrypted agent-to-agent messaging network via local MCP tools or Python SDK. An automated scan of this public skill from sickn33/agentic-awesome-skills: security, token cost, spec and clarity, with every finding and its fix.

Result

Verdict

a4a

83/100 · grade B

sickn33/agentic-awesome-skills/plugins/agentic-awesome-skills-claude/skills/a4a at e8d346b

Spec 21 · Efficiency 19 · Clarity 18 · Security 25 (each out of 25)

Always loaded 32 tokens · on trigger 1,099 · on demand 0

eff/description-trigger warn · SKILL.mddescription doesn't say *when* to use the skill ("Use when …"). Agents decide from this line alone.
spec/non-portable-keys warn · SKILL.mdNon-spec frontmatter (category, risk, source, source_repo, source_type, date_added, author, tags, tools, license_source). claude.ai and the Skills API reject the upload; move them under `metadata` or drop them.
clarity/output warn · SKILL.mdDoesn't say what the result should look like. Add an Output section.
clarity/workflow info · SKILL.mdNo numbered workflow. Ordered steps make agents more reliable than prose.

Where it comes from

Source

Fact	Value
Repository	sickn33/agentic-awesome-skills
Skill folder	plugins/agentic-awesome-skills-claude/skills/a4a
Stars	48,514
License	MIT
Commit scanned	e8d346b
Scanned	2026-10-26
Files	1

ProSkills doesn't host or redistribute this skill. Get it from its repository, and check the license before reusing it. Something wrong here? Open an issue for a rescan or removal.

For maintainers

Badge for the README

If you maintain this skill, this badge shows its score and links to this report. Fix findings and the score moves with the next scan.

[![ProSkills scan 83/100](https://proskills.dev/badge?score=83)](https://proskills.dev/reports/sickn33-a4a)

Same repository

More from sickn33/agentic-awesome-skills

All 40 skills from sickn33/agentic-awesome-skills

FAQ

Questions

Is a4a safe to install?: No known risky patterns found. The scan covers prompt injection, hidden Unicode, remote code execution and credential access in every text file of the skill. It cannot judge intent, so read any flagged line in context before installing.
How was this score calculated?: Four checks of 25 points each: spec, efficiency, clarity and security. Findings take points off the check they belong to, and any critical finding caps the grade at F. The same scanner runs in your browser at proskills.dev/scan.
Is this report current?: It was made from commit e8d346b on 2026-10-26. If the skill has changed since, paste the new version into the scanner for a fresh score.
I wrote this skill. Can I fix the score or have the page removed?: Fix the findings and push. The reports are rebuilt from GitHub on a schedule, so the next run picks the change up. To have the page removed, open an issue on the ProSkills GitHub repo.

Keep reading

Free tool

Scan your own skill

Paste a SKILL.md or drop a folder. It is scored in your browser and nothing is uploaded.

Open the Skill Scanner

Want a skill that already passes? Start with a free one.