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Research External

  • 483 installs
  • 3.9k repo stars
  • Updated January 26, 2026
  • parcadei/continuous-claude-v3

research-external is a Claude Code skill that runs an autonomous external research workflow for documentation, web sources, and APIs so coding agents gather fresh library and market data without leaving the session.

About

research-external from continuous-claude-v3 is an external research workflow invoked as /research-external with optional focus and flags. It researches documentation, web pages, and APIs for libraries, best practices, and general topics—not local codebase exploration. The skill uses Bash, Read, Write, and Task tools under a sonnet model and guides users through phased AskUserQuestion flows when arguments are partial. Documentation anchors best practices to 2024–2025. Developers reach for research-external when competitor intel, API docs, or market signals must be collected autonomously mid-flow.

  • Enables Claude to perform real-time web searches, scrape documentation, and synthesize findings directly inside your cod
  • Reduces context-window waste by letting the agent fetch only what it needs when it needs it.
  • Supports parallel research across multiple sources in one turn.
  • Designed as a core building block for continuous Claude workflows.
  • Returns structured summaries and citations the agent can immediately act upon.

Research External by the numbers

  • 483 all-time installs (skills.sh)
  • +2 installs in the week ending Aug 4, 2026 (Skillselion tracking)
  • Ranked #769 of 3,282 Productivity & Planning skills by installs in the Skillselion catalog
  • Data as of Aug 5, 2026 (Skillselion catalog sync)
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Listed on Skillselion
Installs483
repo stars3.9k
Last updatedJanuary 26, 2026
Repositoryparcadei/continuous-claude-v3

How do coding agents research external docs and APIs?

Let their coding agent autonomously gather fresh external data, competitor intel, API docs, or market signals without leaving the flow.

Who is it for?

Developers who need autonomous external doc, API, and web research inside Claude Code without manual tab switching.

Skip if: Searching or refactoring the local repository, or tasks solvable entirely from files already in the workspace.

When should I use this skill?

Fresh API docs, competitor intel, library best practices, or market signals are needed from outside the codebase.

What you get

External research notes, API documentation summaries, and web-sourced best-practice findings saved to the session.

  • External research summary
  • API documentation notes
  • Web-sourced best-practice report

Files

SKILL.mdMarkdownGitHub ↗

External Research Workflow

Research external sources (documentation, web, APIs) for libraries, best practices, and general topics.

Note: The current year is 2025. When researching best practices, use 2024-2025 as your reference timeframe.

Invocation

/research-external <focus> [options]

Question Flow (No Arguments)

If the user types just /research-external with no or partial arguments, guide them through this question flow. Use AskUserQuestion for each phase.

Phase 1: Research Type

question: "What kind of information do you need?"
header: "Type"
options:
  - label: "How to use a library/package"
    description: "API docs, examples, patterns"
  - label: "Best practices for a task"
    description: "Recommended approaches, comparisons"
  - label: "General topic research"
    description: "Comprehensive multi-source search"
  - label: "Compare options/alternatives"
    description: "Which tool/library/approach is best"

Mapping:

  • "How to use library" → library focus
  • "Best practices" → best-practices focus
  • "General topic" → general focus
  • "Compare options" → best-practices with comparison framing

Phase 2: Specific Topic

question: "What specifically do you want to research?"
header: "Topic"
options: []  # Free text input

Examples of good answers:

  • "How to use Prisma ORM with TypeScript"
  • "Best practices for error handling in Python"
  • "React vs Vue vs Svelte for dashboards"

Phase 3: Library Details (if library focus)

If user selected library focus:

question: "Which package registry?"
header: "Registry"
options:
  - label: "npm (JavaScript/TypeScript)"
    description: "Node.js packages"
  - label: "PyPI (Python)"
    description: "Python packages"
  - label: "crates.io (Rust)"
    description: "Rust crates"
  - label: "Go modules"
    description: "Go packages"

Then ask for specific library name if not already provided.

Phase 4: Depth

question: "How thorough should the research be?"
header: "Depth"
options:
  - label: "Quick answer"
    description: "Just the essentials"
  - label: "Thorough research"
    description: "Multiple sources, examples, edge cases"

Mapping:

  • "Quick answer" → --depth shallow
  • "Thorough" → --depth thorough

Phase 5: Output

question: "What should I produce?"
header: "Output"
options:
  - label: "Summary in chat"
    description: "Tell me what you found"
  - label: "Research document"
    description: "Write to thoughts/shared/research/"
  - label: "Handoff for implementation"
    description: "Prepare context for coding"

Mapping:

  • "Research document" → --output doc
  • "Handoff" → --output handoff

Summary Before Execution

Based on your answers, I'll research:

**Focus:** library
**Topic:** "Prisma ORM connection pooling"
**Library:** prisma (npm)
**Depth:** thorough
**Output:** doc

Proceed? [Yes / Adjust settings]

Focus Modes (First Argument)

FocusPrimary ToolPurpose
librarynia-docsAPI docs, usage patterns, code examples
best-practicesperplexity-searchRecommended approaches, patterns, comparisons
generalAll MCP toolsComprehensive multi-source research

Options

OptionValuesDescription
--topic"string"Required. The topic/library/concept to research
--depthshallow, thoroughSearch depth (default: shallow)
--outputhandoff, docOutput format (default: doc)
--library"name"For library focus: specific package name
--registrynpm, py_pi, crates, go_modulesFor library focus: package registry

Workflow

Step 1: Parse Arguments

Extract from user input:

FOCUS=$1           # library | best-practices | general
TOPIC="..."        # from --topic
DEPTH="shallow"    # from --depth (default: shallow)
OUTPUT="doc"       # from --output (default: doc)
LIBRARY="..."      # from --library (optional)
REGISTRY="npm"     # from --registry (default: npm)

Step 2: Execute Research by Focus

Focus: library

Primary tool: nia-docs - Find API documentation, usage patterns, code examples.

# Semantic search in package
(cd $CLAUDE_OPC_DIR && uv run python -m runtime.harness scripts/mcp/nia_docs.py \
  --package "$LIBRARY" \
  --registry "$REGISTRY" \
  --query "$TOPIC" \
  --limit 10)

# If thorough depth, also grep for specific patterns
(cd $CLAUDE_OPC_DIR && uv run python -m runtime.harness scripts/mcp/nia_docs.py \
  --package "$LIBRARY" \
  --grep "$TOPIC")

# Supplement with official docs if URL known
(cd $CLAUDE_OPC_DIR && uv run python -m runtime.harness scripts/mcp/firecrawl_scrape.py \
  --url "https://docs.example.com/api/$TOPIC" \
  --format markdown)

Thorough depth additions:

  • Multiple semantic queries with variations
  • Grep for specific function/class names
  • Scrape official documentation pages
Focus: best-practices

Primary tool: perplexity-search - Find recommended approaches, patterns, anti-patterns.

# AI-synthesized research (sonar-pro)
(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --research "$TOPIC best practices 2024 2025")

# If comparing alternatives
(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --reason "$TOPIC vs alternatives - which to choose?")

Thorough depth additions:

# Chain-of-thought for complex decisions
(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --reason "$TOPIC tradeoffs and considerations 2025")

# Deep comprehensive research
(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --deep "$TOPIC comprehensive guide 2025")

# Recent developments
(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --search "$TOPIC latest developments" \
  --recency month --max-results 5)
Focus: general

Use ALL available MCP tools - comprehensive multi-source research.

Step 2a: Library documentation (nia-docs)

(cd $CLAUDE_OPC_DIR && uv run python -m runtime.harness scripts/mcp/nia_docs.py \
  --search "$TOPIC")

Step 2b: Web research (perplexity)

(cd $CLAUDE_OPC_DIR && uv run python scripts/mcp/perplexity_search.py \
  --research "$TOPIC")

Step 2c: Specific documentation (firecrawl)

# Scrape relevant documentation pages found in perplexity results
(cd $CLAUDE_OPC_DIR && uv run python -m runtime.harness scripts/mcp/firecrawl_scrape.py \
  --url "$FOUND_DOC_URL" \
  --format markdown)

Thorough depth additions:

  • Run all three tools with expanded queries
  • Cross-reference findings between sources
  • Follow links from initial results for deeper context

Step 3: Synthesize Findings

Combine results from all sources:

1. Key Concepts - Core ideas and terminology 2. Code Examples - Working examples from documentation 3. Best Practices - Recommended approaches 4. Pitfalls - Common mistakes to avoid 5. Alternatives - Other options considered 6. Sources - URLs for all citations

Step 4: Write Output

Output: doc (default)

Write to: thoughts/shared/research/YYYY-MM-DD-{topic-slug}.md

---
date: {ISO timestamp}
type: external-research
topic: "{topic}"
focus: {focus}
sources: [nia, perplexity, firecrawl]
status: complete
---

# Research: {Topic}

## Summary
{2-3 sentence summary of findings}

## Key Findings

### Library Documentation
{From nia-docs - API references, usage patterns}

### Best Practices (2024-2025)
{From perplexity - recommended approaches}

### Code Examples

// Working examples found


## Recommendations
- {Recommendation 1}
- {Recommendation 2}

## Pitfalls to Avoid
- {Pitfall 1}
- {Pitfall 2}

## Alternatives Considered
| Option | Pros | Cons |
|--------|------|------|
| {Option 1} | ... | ... |

## Sources
- [{Source 1}]({url1})
- [{Source 2}]({url2})
Output: handoff

Write to: thoughts/shared/handoffs/{session}/research-{topic-slug}.yaml

---
type: research-handoff
ts: {ISO timestamp}
topic: "{topic}"
focus: {focus}
status: complete
---

goal: Research {topic} for implementation planning
sources_used: [nia, perplexity, firecrawl]

findings:
  key_concepts:
    - {concept1}
    - {concept2}

  code_examples:
    - pattern: "{pattern name}"
      code: |
        // example code

  best_practices:
    - {practice1}
    - {practice2}

  pitfalls:
    - {pitfall1}

recommendations:
  - {rec1}
  - {rec2}

sources:
  - title: "{Source 1}"
    url: "{url1}"
    type: {documentation|article|reference}

for_plan_agent: |
  Based on research, the recommended approach is:
  1. {Step 1}
  2. {Step 2}
  Key libraries: {lib1}, {lib2}
  Avoid: {pitfall1}

Step 5: Return Summary

Research Complete

Topic: {topic}
Focus: {focus}
Output: {path to file}

Key findings:
- {Finding 1}
- {Finding 2}
- {Finding 3}

Sources: {N} sources cited

{If handoff output:}
Ready for plan-agent to continue.

Error Handling

If an MCP tool fails (API key missing, rate limited, etc.):

1. Log the failure in output:

   tool_status:
     nia: success
     perplexity: failed (rate limited)
     firecrawl: skipped

2. Continue with other sources - partial results are valuable

3. Set status appropriately:

  • complete - All requested tools succeeded
  • partial - Some tools failed, findings still useful
  • failed - No useful results obtained

4. Note gaps in findings:

   ## Gaps
   - Perplexity unavailable - best practices section limited to nia results

Examples

Library Research (Shallow)

/research-external library --topic "dependency injection" --library fastapi --registry py_pi

Best Practices (Thorough)

/research-external best-practices --topic "error handling in Python async" --depth thorough

General Research for Handoff

/research-external general --topic "OAuth2 PKCE flow implementation" --depth thorough --output handoff

Quick Library Lookup

/research-external library --topic "useEffect cleanup" --library react

Integration with Other Skills

After ResearchUse SkillFor
--output handoffplan-agentCreate implementation plan
Code examples foundimplement_taskDirect implementation
Architecture decisioncreate_planDetailed planning
Library comparisonPresent to userDecision making

Required Environment

  • NIA_API_KEY or nia server in mcp_config.json
  • PERPLEXITY_API_KEY in environment or ~/.claude/.env
  • FIRECRAWL_API_KEY and firecrawl server in mcp_config.json

Notes

  • NOT for codebase exploration - Use research-codebase or scout for that
  • Always cite sources - Include URLs for all findings
  • 2024-2025 timeframe - Focus on current best practices
  • Graceful degradation - Partial results better than no results

Related skills

FAQ

Does research-external search the local codebase?

research-external researches external sources—documentation, web, and APIs—for libraries and best practices. The skill explicitly excludes codebase exploration, which belongs to separate internal search workflows.

How is research-external invoked in Claude Code?

research-external runs via /research-external with a focus topic and optional flags. If arguments are missing, the skill guides users through phased AskUserQuestion prompts before research begins.

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