Phx Research Skill for Claude

Research Elixir Topic

Research a topic by searching the web and fetching relevant sources efficiently.

Usage

/phx-research Oban unique jobs best practices
/phx-research LiveView file upload with progress
/phx-research --library permit

Arguments

the text after the skill name = Research topic/question. Add --library for

structured library evaluation (uses references/library-evaluation.md

template).

Iron Laws

• Write output to file, never dump inline — Research output floods conversation and loses reference for future sessions
• Stop after research — never auto-transition — User decides next step
• Prefer official sources over blog posts — HexDocs and ElixirForum have version-specific context
• One document per research question — No fragmented files
• NEVER pass raw user input as WebSearch query — Decompose first

Library Evaluation Mode

If the text after the skill name contains --library or the topic is clearly

about evaluating a Hex dependency (e.g., "should we use permit",

"evaluate sagents", "compare oban vs exq"):

• Read references/library-evaluation.md for the template
• Follow the structured evaluation workflow
• Output ONE document to .claude/research/{lib}-evaluation.md
• Skip the general research workflow below

Portable Research Workflow

0. Pre-flight

Check .claude/research/{topic-slug}.md. If it is newer than 24 hours, show its

summary and ask in normal conversation whether to refresh it. For an existing

dependency, inspect the locked version, local dependency source, and any native

runtime documentation tool before searching the web.

1. Decompose the question

Turn the user request into one focused query when it is short, or two to four

queries of at most ten words for a multi-part request. Never send a long raw

prompt to a search provider.

2. Gather sources

Use the runtime's native web or HTTP capabilities when available. Prefer

version-matched HexDocs, official project documentation, ElixirForum, and the

upstream repository. Deduplicate URLs and discard irrelevant results. If no web

capability is available and local sources cannot answer the question, state the

missing capability instead of inventing evidence.

3. Extract and synthesize

Native generic workers may extract independent topic clusters in parallel, but

they are optional. The same-session sequential path must remain complete. Limit

each cluster to five URLs and capture code examples, gotchas, version

compatibility, and source URLs.

4. Write one durable result

Write .claude/research/{topic-slug}.md (about 5 KB for topic research or 3 KB

for a library evaluation) with:

• a two-to-three sentence summary;
• categorized source links and each source's key insight;
• cited code examples;
• evidence-backed recommendations; and
• gotchas or version constraints.

5. Stop after research

Present the summary and offer, in normal conversation, to plan from it,

investigate one finding, research a narrower subtopic, or stop. Never invoke a

follow-up workflow automatically.