Deep Research Skill

Purpose

This skill enables comprehensive, internet-enabled research on any topic using the OpenAI Responses API with web search (default model gpt-5.6-sol, override with --model or DEEP_RESEARCH_MODEL). o3-deep-research and o4-mini-deep-research were scheduled for shutdown on 2026-07-23 and are no longer the default. It intelligently enhances user research prompts through interactive clarifying questions, ensures research parameters are saved for reproducibility, and executes deep research with full web search capabilities.

When to Use This Skill

Trigger this skill when:

• User requests research on a specific topic
• User asks for analysis, investigation, or comprehensive information gathering
• User wants exploration of a subject with web search and reasoning
• User provides a brief research query that could be refined
• User wants to understand current state, trends, or comparisons in a field

Example user requests:

• "Research the most effective open-source RAG solutions with high benchmark performance"
• "What are the latest AI developments in 2025?"
• "I need a comprehensive analysis of distributed database systems"
• "Find best practices for implementing vector search"
• "Investigate how AI is impacting the software engineering industry"

Workflow Overview

User Input
    ↓
Assessment: Prompt too brief?
    ↓
YES → Ask Enhancement Questions → Collect Answers
    ↓                               ↓
    └───────→ Construct Enhanced Prompt ←──┘
                    ↓
            Save to Timestamped File
                    ↓
            Execute deep_research.py
                    ↓
            Output Report + Sources
                    ↓
            Present to User

How Claude Should Use This Skill

Important for Token Efficiency: Deep research takes 10-20 minutes or more. The runner uses background mode and polls quietly every 15 s; the command blocks until the run ends, so no status checks are needed from Claude. Claude should:

1. Start the research
2. Wait for completion (subprocess blocks automatically)
3. Present final results once complete

No need for periodic polling or status updates during execution.

Step 1: Accept Research Request

Receive the user's research prompt. This can range from brief ("Latest AI trends") to highly detailed ("Impact of language models on developer productivity with focus on 2024-2025").

Step 2: Execute the Orchestration Script

Run the skill's main orchestration script with the user's research prompt:

python3 scripts/run_deep_research.py "Your research prompt here"

The script is located at scripts/run_deep_research.py within the skill's installation.

Step 3: Script Execution Flow

The script automatically:

1. Assesses prompt completeness: Checks if prompt is too brief or generic (< 15 words or starts with "what is", "how to", etc.)

2. Asks clarifying questions (if needed):

   • Presents 2-3 focused questions relevant to the research type
   • Detects if research is technical or general based on keywords
   • Allows users to select from predefined options (1-4) or provide custom text
   • Questions cover: Scope/Timeframe, Depth level, Focus areas

3. Enhances the prompt: Combines original prompt with user's answers into structured research parameters

4. Saves prompt file: Writes enhanced prompt to research_prompt_YYYYMMDD_HHMMSS.txt for reproducibility

5. Executes deep research: Runs the core deep_research.py script with:

   • Model: gpt-5.6-sol with reasoning high (configurable via --model, --reasoning, or env DEEP_RESEARCH_MODEL)
   • Maximum wait: 3600 seconds / 60 minutes (configurable via --timeout)
   • Tools: Web search enabled by default

Step 4: Present Results to User

The script automatically:

• Saves raw JSON first: research_response_YYYYMMDD_HHMMSS.json holds the exact API response bytes (citation spans, web-search step log). It is written as soon as the run is created, and again at every poll, so nothing paid for is lost.
• Saves the request: research_request_…json (model, tools, prompt; never the key)
• Saves markdown file: research_report_YYYYMMDD_HHMMSS.md, with footer lines for model, response ID, and raw-response file
• Prints to terminal: Complete research report with markdown formatting
• Lists consulted sources: ## Sources consulted (web search) lists every URL the web-search steps searched or opened. These are consulted, not cited; citations are the inline links.
• Confirms completion: Path where research files were saved

Token Efficiency Note: The script blocks while it polls in the background, so Claude waits on one command.

Interrupted runs: the response ID is printed and saved before waiting. Collect a run that is still going, or one whose wait timed out, with python3 assets/deep_research.py --resume <response_id> --output-dir <dir>. This sends no new (paid) request.

Importing into a vault: import the raw JSON, not the Markdown, with the research-runs skill: python3 ~/.claude/skills/research-runs/scripts/research_run.py import research_response_….json --vault <vault> --adapter openai-json --provider openai --surface api --prompt research_prompt_….txt. The JSON keeps citation spans and consulted-but-uncited pages.

Bundled Resources

Scripts

scripts/run_deep_research.py (Main Entry Point)

The orchestration script that handles:

• Prompt quality assessment
• Interactive enhancement questions (with smart detection for technical vs. general research)
• Prompt saving and timestamping
• Execution of core deep research

Key Features:

• Smart enhancement: Only asks questions if prompt is brief/generic
• Template-based questions: Different question sets for technical vs. general research
• Flexible input: Numbered options + custom text input
• Error handling: Helpful messages if deep_research.py is not found

Available options:

python3 run_deep_research.py <prompt> [OPTIONS]
  --no-enhance              Skip enhancement questions
  --model <model>           Model to use (default: runner default, gpt-5.6-sol)
  --timeout <seconds>       Maximum wait in seconds (default: 3600)
  --output-dir <path>       Where to save the prompt, request, raw response, and report

assets/deep_research.py

Core script that interfaces with OpenAI's Deep Research API. Handles:

• API authentication via OPENAI_API_KEY
• Request creation and execution
• Automatic markdown saving: Saves timestamped report files by default
• Output formatting (report + sources with metadata)
• Error handling and retries

New command-line options:

--output-file <path>      Custom output file path
--no-save                 Disable automatic markdown saving

References

references/workflow.md

Detailed workflow documentation covering:

• Complete skill workflow with examples
• Prompt enhancement strategies
• Research parameters explanation
• Integration guidance for Claude
• Command-line interface reference
• Error handling and troubleshooting
• Tips for effective research

Key Behaviors

Smart Prompt Enhancement

The skill intelligently determines whether enhancement is needed:

• Triggers enhancement for prompts with < 15 words or generic starts
• Skips enhancement for detailed, specific prompts
• Allows users to disable with --no-enhance flag
• Template-aware: Uses different questions for technical vs. general research

Research Parameters

Enhanced prompts include:

• Original user query with full context
• Scope and timeframe preferences
• Desired depth level (summary, technical, implementation, comparative)
• Specific focus areas (performance, cost, security, etc.)

These parameters help the deep research model deliver more targeted, relevant results.

Reproducibility

Every research execution:

• Saves the exact prompt used to a timestamped file
• Enables tracing research decisions
• Allows follow-up research using same/modified prompts
• Maintains audit trail of research parameters

Examples

Brief Prompt with Enhancement

User: "Research the most effective opensource RAG solutions"

Script behavior:

1. Detects brief prompt (12 words) + technical keywords ("opensource", "RAG")
2. Asks technical research questions:
   • Technology scope: Open-source only? (User: Yes)
   • Key metrics: Performance/benchmarks? (User: Speed and Accuracy)
   • Use cases: Production deployment? (User: Multiple aspects)
3. Enhances to detailed prompt with parameters
4. Saves and executes deep research
5. Returns comprehensive report with comparative benchmarks and source URLs

Detailed Prompt Without Enhancement

User: "Analyze the impact of large language models on software developer productivity in 2024-2025, focusing on code generation tools, pair programming, and productivity metrics."

Script behavior:

1. Detects detailed prompt (24 words) with specific scope/focus
2. Skips enhancement questions
3. Saves and executes deep research immediately
4. Returns focused analysis aligned with user specifications

Requirements

• Python 3.7+
• OpenAI API key: read from SOPS (~/.claude/skills/secrets.enc.yaml) first, then OPENAI_API_KEY or a .env file
• Internet connection (for web search)
• Up to 60 minutes for research completion (configurable --timeout; use --resume beyond that)

Token-Efficient Workflow

Long-Running Task Optimization

Deep research queries typically take 10-20 minutes to complete. This skill is optimized to minimize token usage during long waits:

How it works:

1. Synchronous execution: The script runs as a blocking subprocess (no background polling)
2. No intermediate checks: Claude waits silently for completion without status updates
3. Single output: Results are presented once at the end
4. Automatic saving: Markdown files are saved automatically, no manual intervention needed

Token savings:

• Traditional approach: Checking status every 30 seconds = ~40 checks × 500 tokens = ~20,000 tokens wasted
• This approach: Single wait = ~1,000 tokens total

Automatic File Management

The skill automatically generates and saves files:

Generated files:

• research_prompt_YYYYMMDD_HHMMSS.txt - Enhanced research prompt with parameters
• research_request_YYYYMMDD_HHMMSS.json - What was sent: model, tools, reasoning, prompt (no key)
• research_response_YYYYMMDD_HHMMSS.json - Exact raw API response: report text, url_citation annotations with character spans, web_search_call steps with consulted sources. Canonical record; import this one.
• research_report_YYYYMMDD_HHMMSS.md - Readable report with:
  • Inline citation links
  • ## Sources consulted (web search): every URL searched or opened, cited or not
  • Metadata footer (date, model, response ID, raw-response file name)

Customization options:

# Custom output location
python3 deep_research.py --prompt-file prompt.txt --output-file my_research.md

# Disable automatic saving (terminal output only)
python3 deep_research.py --prompt-file prompt.txt --no-save

Troubleshooting

Missing OPENAI_API_KEY

Error: "Missing OPENAI_API_KEY"

Solution:

• Set environment variable: export OPENAI_API_KEY="your-key"
• Or create .env file in working directory with OPENAI_API_KEY=your-key

deep_research.py Not Found

Error: "Could not find deep_research.py"

Solution:

• Ensure skill is properly installed with assets
• Script searches in: skill assets folder → current directory → parent directory

Research Timeout

Error: "Still in_progress after …s. Resume later with: --resume "

Solution:

• Collect it later: --resume <id> (no new charge), or increase --timeout 5400 (90 minutes)
• Simplify prompt to reduce research scope
• Run during off-peak hours for potentially faster API responses