Model Brain

Use this skill when the goal is to choose the right model for a single message or action.

Core policy

• Prefer zero-llm when a deterministic skill or script can do the job.
• Use the cheapest adequate model for low-risk work.
• Use bankr/claude-sonnet-4.5 for routine wallet and treasury operations that are important but still normal.
• Escalate to bankr/claude-opus-4.6 only for explicitly high-stakes, security-sensitive, or ambiguous wallet flows.
• Use bankr/gpt-5.2-codex for coding-heavy implementation work.
• Keep routing deterministic and rule-based before adding any LLM-on-LLM behavior.
• Treat the output as a routing recommendation, not as transaction authority.

Default routes

• zero-llm
  • deterministic skills like pet-me-master
  • shellable tasks with no reasoning need
• bankr/minimax-m2.5
  • casual chat, lightweight rewriting, simple summaries, low-risk classification
• bankr/claude-sonnet-4.5
  • general reasoning, planning, product thinking, routine wallet ops
• bankr/gpt-5.2-codex
  • coding-heavy patching, repo surgery, implementation details
• bankr/gemini-3-pro
  • long-context synthesis and broad document digestion
• bankr/gemini-3-flash
  • lightweight vision and quick multimodal triage
• bankr/claude-opus-4.6
  • explicitly high-stakes wallet actions, security reviews, tricky architecture, final escalation

Routing workflow

1. Check whether the request can be handled by a deterministic skill or script.
2. Classify the task: chat, code, wallet, vision, long-context, or deterministic.
3. Mark whether the request is high-stakes.
4. Route to the cheapest safe model.
5. Return the primary route, fallback route, and a short reason.

Quick start

python3 {baseDir}/scripts/route_message.py --text "pet all my 53 gotchis" --json
python3 {baseDir}/scripts/route_message.py --text "rewrite this x thread shorter" --json
python3 {baseDir}/scripts/route_message.py --text "swap ETH to USDC and send to treasury" --json
bash {baseDir}/scripts/select_model.sh --text "build this feature in the repo" --mode summary

Wrapper entrypoint

Use scripts/select_model.sh when you want a simple aaigotchi-friendly wrapper before model selection. It can emit just the route, full JSON, or shell-style env lines.

References

• Read references/routing-table.md for the routing rules and escalation thresholds.
• Read references/bankr-models.md for the current Bankr model inventory and aaigotchi default.