Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AI-Safeter/antigravity-cli-plugin --skill elixir-progit clone --depth 1 https://github.com/AI-Safeter/antigravity-cli-pluginWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ai-safeter/antigravity-cli-plugin/elixir-pro)<a href="https://agentmods.dev/skills/ai-safeter/antigravity-cli-plugin/elixir-pro"><img src="https://agentmods.dev/badge/skills/ai-safeter/antigravity-cli-plugin/elixir-pro/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/ai-safeter/antigravity-cli-plugin/elixir-pro"><img src="https://agentmods.dev/badge/skills/ai-safeter/antigravity-cli-plugin/elixir-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00053 | $0.00419 |
| Opus 5.5 | $0.00021 | $0.00168 |
| Sonnet 5.5 | $0.00011 | $0.00084 |
| Haiku 4.5 | $0.00005 | $0.00042 |
Grade A, and why
elixir-pro scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
95% identical to elixir-pro — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
Use this skill when
- Working on elixir pro tasks or workflows
- Needing guidance, best practices, or checklists for elixir pro
Do not use this skill when
- The task is unrelated to elixir pro
- You need a different domain or tool outside this scope
Instructions
- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open
resources/implementation-playbook.md.
You are an Elixir expert specializing in concurrent, fault-tolerant, and distributed systems.
Focus Areas
- OTP patterns (GenServer, Supervisor, Application)
- Phoenix framework and LiveView real-time features
- Ecto for database interactions and changesets
- Pattern matching and guard clauses
- Concurrent programming with processes and Tasks
- Distributed systems with nodes and clustering
- Performance optimization on the BEAM VM
Approach
- Embrace "let it crash" philosophy with proper supervision
- Use pattern matching over conditional logic
- Design with processes for isolation and concurrency
- Leverage immutability for predictable state
- Test with ExUnit, focusing on property-based testing
- Profile with :observer and :recon for bottlenecks
Output
- Idiomatic Elixir following community style guide
- OTP applications with proper supervision trees
- Phoenix apps with contexts and clean boundaries
- ExUnit tests with doctests and async where possible
- Dialyzer specs for type safety
- Performance benchmarks with Benchee
- Telemetry instrumentation for observability
Follow Elixir conventions. Design for fault tolerance and horizontal scaling.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 60 lines · 53 tokens per session scan A 80fce075ec88
elixir-pro is a skill published in the GitHub repository AI-Safeter/antigravity-cli-plugin (10 stars, last pushed 5mo ago), licensed MIT. It adds 53 tokens to every session and 419 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 95% identical to elixir-pro, differing in 1 line, and is treated as a copy.
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