Claude Opus 5

Generate responses through Frevana's OpenRouter Responses API (POST /openrouter/v1/responses) using anthropic/claude-opus-5.

Return the validated API response JSON unchanged, or use --text-only when the user requests only the final text output.

Model Characteristics

• Model ID: anthropic/claude-opus-5 (Anthropic Claude Opus 5 flagship model via OpenRouter).
• Best suited for frontier intelligence, deep analytical reasoning, highly nuanced academic or business writing, complex codebase refactoring, multi-step problem solving, and autonomous research.
• For high-throughput or cost-sensitive tasks, consider deepseek/deepseek-v4.1-flash. For balanced enterprise workflows and coding, consider anthropic/claude-sonnet-5.

What This Skill Needs

• input or prompt via --input or --input-file (or raw JSON payload via --raw-payload-file)
• optional developer system instructions via --instructions or --instructions-file
• optional reasoning effort: --reasoning-effort <low|medium|high>
• optional sampling: --temperature, --top-p, --max-output-tokens
• optional multi-turn conversation continuation: --previous-response-id
• optional session persistence: --session-file or --session
• optional tools: --tools or --tools-file, --tool-choice
• optional service tier: --service-tier <auto|default|flex|priority>
• authentication: FREVANA_TOKEN (or --token) / FREVANA_API_KEY (or --api-key)
• optional attribution: FREVANA_AGENT_APP_INSTANCE_ID (or X_FREVANA_AGENT_APP_INSTANCE_ID, or --agent-app-instance-id) sent as x-frevana-agent-app-instance-id
• curl, bash, and python3

Allowed Options

• --model: anthropic/claude-opus-5 (default; aliases claude-opus-5, claude-ops-5 accepted)
• --input, --prompt: user prompt string or JSON message array
• --input-file: file path containing input prompt or JSON message array
• --instructions: system developer instructions
• --instructions-file: file path containing system instructions
• --reasoning-effort: low, medium, high
• --temperature: 0.0 - 2.0
• --top-p: 0.0 - 1.0
• --max-output-tokens: positive integer
• --session: session name (e.g. default, chat1) saved under ~/.frevana/sessions
• --session-file: path to session file to automatically save and restore conversation context across calls
• --new-session, --new: reset conversation context and start a fresh session
• --no-session: disable session persistence for this run
• --previous-response-id: ID of a previous response for multi-turn conversations
• --chat: start an interactive chat session in the terminal
• --service-tier: auto, default, flex, priority
• --tools: JSON array string defining available tools/functions
• --tools-file: path to JSON file defining tools
• --tool-choice: tool choice behavior (auto, required, none, or JSON)
• --raw-payload-file: path to raw JSON request body
• --api-key: Frevana API key (sent as X-API-Key)
• --token: Frevana Bearer token (sent as Authorization: Bearer)
• --agent-app-instance-id: Agent App instance/team ID (sent as x-frevana-agent-app-instance-id)
• --text-only, -t: output only the response text
• --output: save full response JSON to path

Commands

# Frontier reasoning and research
bash <skill-path>/scripts/create_response.sh \
  --input "Evaluate the theoretical scalability bounds and consensus guarantees of DAG-based vs BFT blockchain protocols" \
  --instructions "Provide a rigorous comparative breakdown with formal definitions." \
  --reasoning-effort high \
  --output ./out/opus-analysis.json

# Multi-turn conversation with automatic session persistence (Recommended)
bash <skill-path>/scripts/create_response.sh \
  --session-file ./out/opus_session.json \
  --input "I am architecting a multi-tenant telemetry ingestion platform for 10M events/sec" \
  --text-only

bash <skill-path>/scripts/create_response.sh \
  --session-file ./out/opus_session.json \
  --input "Detail the Kafka partitioning, Flink state backend, and storage tiering strategy" \
  --text-only

# Multi-turn conversation by previous response ID
bash <skill-path>/scripts/create_response.sh \
  --input "Summarize the failure modes and recovery procedures for the architecture" \
  --previous-response-id "resp_opus_123" \
  --text-only

# Interactive terminal chat
bash <skill-path>/scripts/create_response.sh --chat