Curated library of 38 atomic skills, 7 personas, and 1 orchestrator for Elixir and Phoenix development. Organized by category: fundamentals, phoenix, database, testing, auth, infrastructure, quality, security, integrations, tooling, frameworks, personas, and orchestration. Covers core Elixir patterns, Phoenix LiveView, Ecto, OTP, Oban, testing, security, deployment, real-time, and modern tooling (Req, Swoosh, Cachex, Broadway, Ash).
91
91%
Does it follow best practices?
Impact
91%
1.37xAverage score across 56 eval scenarios
Advisory
Suggest reviewing before use
{
"context": "Checks whether the final artifact follows the otp-essentials instructions from the published Elixir Phoenix Skills plugin.",
"type": "weighted_checklist",
"checklist": [
{
"name": "instruction-1",
"description": "The submitted artifact follows this skill instruction: Use this skill before writing ANY GenServer, Supervisor, Task, or Agent module.",
"max_score": 10
},
{
"name": "instruction-2",
"description": "The submitted artifact follows this skill instruction: **Always use `@impl true`** before GenServer/Agent callbacks (init, handle_call, handle_cast, handle_info, terminate)",
"max_score": 10
},
{
"name": "instruction-3",
"description": "The submitted artifact follows this skill instruction: **Use `GenServer.call` for request/response, `GenServer.cast` for fire-and-forget** — never cast when you need a result",
"max_score": 10
},
{
"name": "instruction-4",
"description": "The submitted artifact follows this skill instruction: **Always define a public API wrapping GenServer calls** — callers should never use `GenServer.call(pid, ...)` directly",
"max_score": 10
},
{
"name": "instruction-5",
"description": "The submitted artifact follows this skill instruction: **Use `Task.async`/`Task.await` with bounded timeouts** — never `Task.async` without a corresponding `Task.await` or `Task.yield`",
"max_score": 10
},
{
"name": "instruction-6",
"description": "The submitted artifact follows this skill instruction: **Use `Task.Supervisor`** for fire-and-forget supervised work",
"max_score": 10
},
{
"name": "instruction-7",
"description": "The submitted artifact follows this skill instruction: **Prefer ETS over a bottleneck GenServer** for shared read-heavy state — one GenServer serializes all access",
"max_score": 10
},
{
"name": "instruction-8",
"description": "The submitted artifact follows this skill instruction: Always wrap GenServer calls behind a public module API. Callers should not know they're talking to a GenServer.",
"max_score": 10
},
{
"name": "instruction-9",
"description": "The submitted artifact follows this skill instruction: Never block in `init/1`. Use `handle_continue` for expensive setup.",
"max_score": 10
},
{
"name": "instruction-10",
"description": "The submitted artifact follows this skill instruction: **Define children** — list in dependency order (dependencies first)",
"max_score": 10
}
]
}.tessl-plugin
evals
scenario-1
scenario-2
scenario-3
scenario-4
scenario-5
scenario-6
scenario-7
scenario-8
scenario-9
scenario-10
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scenario-47
scenario-48
scenario-49
scenario-50
scenario-51
scenario-52
scenario-53
scenario-54
scenario-55
scenario-56
skills
frameworks
ash-framework
infrastructure
orchestration
elixir-skill-router
personas
phoenix
quality
security
security-essentials
tooling
mix-tasks-generators