antigravity-awesome-skills

Antigravity Awesome Skills is an installable GitHub library/installer CLI that places reusable SKILL.md agent playbooks into directories for various AI coding assistants (e.g., Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and others). It also provides curated bundles and ordered workflows/playbooks plus installer metadata for plugin marketplace-style distributions where supported.

Evaluated Mar 29, 2026 (0d ago)
Homepage ↗ Repo ↗ DevTools ai-agent-skills developer-tools cli mcp plugins workflows documentation productivity
⚙ Agent Friendliness
35
/ 100
Can an agent use this?
🔒 Security
29
/ 100
Is it safe for agents?
⚡ Reliability
35
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
0
Documentation
70
Error Messages
0
Auth Simplicity
95
Rate Limits
0

🔒 Security

TLS Enforcement
50
Auth Strength
20
Scope Granularity
0
Dep. Hygiene
40
Secret Handling
40

This package primarily distributes static markdown playbooks and installer metadata; it does not describe an authenticated network API. Security risks are more about (1) installing unreviewed third-party/community skills, (2) content that may include unsafe instructions for certain environments, and (3) supply-chain risk from installation/updates. No concrete details are provided about secret handling, TLS, or dependency/SBOM hygiene in the supplied content.

⚡ Reliability

Uptime/SLA
0
Version Stability
60
Breaking Changes
50
Error Recovery
30
AF Security Reliability

Best When

You want an install-once library of reusable, tool-compatible agent instructions and curated starting bundles/workflows across popular coding assistants.

Avoid When

You need a runtime API with fine-grained programmatic control, or you require strict guarantees that every installed skill has been security-hardened for your environment.

Use Cases

  • Quickly installing a large catalog of reusable agent playbooks (SKILL.md) into the expected folders for multiple AI coding assistants
  • Using curated bundles (role/domain-based) to bootstrap consistent planning/coding/testing/security workflows
  • Running multi-step workflows by combining multiple skills in an ordered way
  • Improving agent prompting/operating instructions for common software engineering tasks (debugging, testing, security review, infra/product workflows)
  • Marketplace-style installation for Claude Code/Codex where the repo publishes plugin metadata

Not For

  • A dedicated hosted API service for runtime agent calls (it is primarily a content/library + installer)
  • Real-time authentication/authorization-protected operations (it mostly distributes static markdown playbooks)
  • Use cases requiring strong, standardized machine-to-machine contracts like REST/OpenAPI for skill execution
  • Compliance-heavy environments needing guaranteed content provenance/review for third-party/community skills

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: Local/installer usage (npx CLI)
OAuth: No Scopes: No

The README content indicates installer and file-placement behavior rather than an authenticated network API. No OAuth/scopes mechanism is described for tool execution.

Pricing

Free tier: No
Requires CC: No

No pricing model described in the provided content; it appears to be a repository/library distributed via npm/npx and GitHub.

Agent Metadata

Pagination
none
Idempotent
True
Retry Guidance
Not documented

Known Gotchas

  • Skill availability depends on the specific assistant/tool and the correct install path (e.g., directories under ~/.gemini/..., .cursor/, .claude/, etc.).
  • Marketplace/plugin distributions are described as “plugin-safe filtered,” so some skills may be excluded until hardened.
  • Because the repository contains many community/curated playbooks, quality/security varies by skill; agents should still perform validation for sensitive tasks.
  • For OpenCode path updates, the installed location may differ; incorrect paths can lead to “skill not found” behavior.

Alternatives

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Scores are editorial opinions as of 2026-03-29.

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