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Agent skill

Research

by oliver-kriska in oliver-kriska/claude-elixir-phoenix

Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library).

MITAuto-check passedAI & LLM Engineering

Install Research

skills CLI
$ npx skills add oliver-kriska/claude-elixir-phoenix --skill research -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install oliver-kriska/claude-elixir-phoenix research --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/oliver-kriska/claude-elixir-phoenix.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/elixir-phoenix/skills/research .claude/skills/research && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
research
GitHub stars
565
Token cost
~1.2k tokens
SKILL.md length
395 words
Files
2 (incl. references)
Skills in repo
109
Repo updated
First seen
Licence
MIT

At a glance

Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library).

  • Works in 5 steps: Pre-flight Checks → Query Decomposition (CRITICAL — before… → Parallel Web Search → …
  • Learning about libraries
  • SKILL.md covers Usage, Arguments, Iron Laws and Library Evaluation Mode, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Research is an agent skill from oliver-kriska/claude-elixir-phoenix. Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library). Use when learning about libraries, patterns, or comparing approaches. Searches HexDocs, ElixirForum, GitHub.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/library-evaluation.md`).

It sits in AI & LLM Engineering, covering LLM observability. It works with Elixir and GitHub. The repository describes itself as: Claude Code plugin for Elixir/Phoenix/LiveView — 26 specialist agents, Iron Laws enforcement, and Tidewave MCP integration. Plan features with parallel research agents, execute… The licence is MIT.

When your agent uses it

  • Learning about libraries
  • Comparing approaches

Example prompts

  • “/research”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Pre-flight Checks
  2. Query Decomposition (CRITICAL — before any search)
  3. Parallel Web Search
  4. Spawn Parallel Research Workers
  5. Write Output (File-First — NEVER Dump Inline)

What it can do on your machine

Read from SKILL.md and the folder at commit 9767a82. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Research loads about 1.2k tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 48 tokens; SKILL.md has 395 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from oliver-kriska/claude-elixir-phoenix at commit 9767a82, republished under its MIT licence (© oliver-kriska). 395 words, ~1,215 tokens.

Download SKILL.mdSave it as .claude/skills/research/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
research
description
Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library). Use when learning about libraries, patterns, or comparing approaches. Searches HexDocs, ElixirForum, GitHub.
effort
high

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

$ARGUMENTS = Research topic/question. Add --library for structured library evaluation (uses ${CLAUDE_SKILL_DIR}/references/library-evaluation.md template).

Iron Laws

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

Library Evaluation Mode

If $ARGUMENTS contains --library or the topic is clearly about evaluating a Hex dependency (e.g., "should we use permit", "evaluate sagents", "compare oban vs exq"):

  1. Read ${CLAUDE_SKILL_DIR}/references/library-evaluation.md for the template
  2. Follow the structured evaluation workflow
  3. Output ONE document to .claude/research/{lib}-evaluation.md
  4. Skip the general research workflow below

Workflow

0. Pre-flight Checks

Cache check: Check if .claude/research/{topic-slug}.md already exists. If recent (<24 hours): present existing summary, ask "Refresh or use existing?"

Tidewave shortcut: If the topic is about an existing dependency (library already in mix.exs), prefer Tidewave over web search:

mcp__tidewave__get_docs(module: "LibraryModule")

This returns docs matching your exact mix.lock version — faster, more accurate, zero web tokens. Only fall through to web search if Tidewave is unavailable or the topic needs community discussion (gotchas, real-world patterns, comparisons).

Show full SKILL.md (174 more words)Show less

Decompose $ARGUMENTS before searching — raw prose makes a poor query:

  • If $ARGUMENTS < 30 words and focused → use as single query
  • If $ARGUMENTS > 30 words or multi-topic → extract 2-4 queries

Each query: max 10 words, targets ONE specific aspect.

Example:

Input: "detect files, export to md, feed database with embeddings,
        use ReqLLM for OpenAI API..."
Queries:
  1. "Elixir PDF text extraction library hex"
  2. "Ecto pgvector embeddings setup"
  3. "ReqLLM OpenAI embeddings Elixir"

Search ALL decomposed queries in a SINGLE response (parallel):

WebSearch(query: "{query1} site:elixirforum.com OR site:hexdocs.pm OR site:github.com")
WebSearch(query: "{query2} site:hexdocs.pm OR site:elixirforum.com")

Deduplicate URLs across results. Discard clearly irrelevant hits.

3. Spawn Parallel Research Workers

Group URLs by topic cluster. Spawn 1-3 web-researcher agents in parallel (one per topic cluster):

Agent(subagent_type: "phx:web-researcher", prompt: """
Research focus: {specific aspect from decomposed query}
Fetch these URLs:
- {url1}
- {url2}
- {url3}
Extract: code examples, patterns, gotchas, version compatibility.
Return 500-800 word summary.
""", run_in_background: true)

Rules:

  • 1 topic cluster = 1 agent (don't mix unrelated URLs)
  • Max 5 URLs per agent (diminishing returns beyond that)
  • If only 1-3 URLs total, use single foreground agent
  • Pass URLs explicitly — agents should NOT re-search
  • Agents are focused on extraction, not synthesis
4. Write Output (File-First — NEVER Dump Inline)

After ALL agents complete, synthesize summaries into ONE file. Target: ~5KB for topic research, ~3KB for library evaluations.

Create .claude/research/{topic-slug}.md:

markdown
# Research: {topic}

## Summary
{2-3 sentence answer combining all worker findings}

## Sources

### {Category}
- [{title}]({url}) - {key insight}

### Code Examples

```elixir
# From {source}: {what this demonstrates}
{code}

Recommendations

  1. {recommendation with evidence}
  2. {recommendation with evidence}

Watch Out For

  • {gotcha from forum/issues}
  • {version compatibility note}

### 5. After Research — STOP

**STOP and present the research summary.** Do NOT auto-transition.

Use `AskUserQuestion` to let the user choose next action:

- "Plan a feature based on this research" → `/phx:plan`
- "Investigate a specific finding" → `/phx:investigate`
- "Research more on a subtopic" → continue research
- "Done" → end

**NEVER auto-invoke `/phx:plan` or any other skill after research.**

© oliver-kriska, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in plugins/elixir-phoenix/skills/research of oliver-kriska/claude-elixir-phoenix.

  • SKILL.md
  • references/library-evaluation.md

Open the folder on GitHubat commit 9767a82

Compare with similar skills

Research next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Research compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Research this skilloliver-kriska/claude-elixir-phoenix565—~1.2kAutomated safety check: PassMIT
Ash Frameworkpodlove/radiator136—~2.1kAutomated safety check: PassMIT
Sentry Elixir SDKgetsentry/sentry-for-ai268—~3.5kAutomated safety check: PassApache-2.0
Phoenix GitHubArize-ai/phoenix12k—~6.5kAutomated safety check: PassApache-2.0
Agents Operationfazer-ai/agents118—~1.3kAutomated safety check: PassApache-2.0
Elixir Expertpass-agent/loomkin1811 repos~796Automated safety check: PassMIT

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Works with

Categories

Questions about Research

What does Research do?

Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library). Research is an agent skill from oliver-kriska/claude-elixir-phoenix. Research Elixir/Phoenix/Ecto topics or evaluate Hex libraries (--library).

When should I use Research?

Research fits situations like: learning about libraries; comparing approaches.

How do I install Research in Claude Code?

Run `npx skills add oliver-kriska/claude-elixir-phoenix --skill research -a claude-code`. Or copy the skill folder (plugins/elixir-phoenix/skills/research in oliver-kriska/claude-elixir-phoenix) into .claude/skills/research in your project. Claude Code loads it when a task matches its description.

How do I install Research in Codex?

Run `npx skills add oliver-kriska/claude-elixir-phoenix --skill research -a codex`. Or copy the skill folder (plugins/elixir-phoenix/skills/research in oliver-kriska/claude-elixir-phoenix) into .agents/skills/research in your project. Codex loads it when a task matches its description.

Can I use Research in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add oliver-kriska/claude-elixir-phoenix --skill research -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/research, .gemini/skills/research, .github/skills/research and .opencode/skills/research in your project.

What does Research need to run?

SKILL.md names no scripts, command-line tools or credentials: Research is instructions for the agent only.

Does Research access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Research safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Research use?

Research is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Research use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 479 tokens, read only when the agent opens those files.

What are the alternatives to Research?

Skills that share tags, products or a category with Research: Ash Framework (podlove/radiator, 136 stars), Sentry Elixir SDK (getsentry/sentry-for-ai, 268 stars), Phoenix GitHub (Arize-ai/phoenix, 12k stars) and Agents Operation (fazer-ai/agents, 118 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Research?

oliver-kriska (a GitHub user) maintains it in oliver-kriska/claude-elixir-phoenix, which has 565 GitHub stars. The repository holds 109 skills in this directory. The repository was last updated on October 5, 2026.

Source: oliver-kriska/claude-elixir-phoenix on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.