Add Model Price

Use this skill for model pricing changes in worker/ and shared LLM type
updates in packages/shared/.

When to Apply

• Editing worker/src/constants/default-model-prices.json
• Editing packages/shared/src/server/llm/types.ts
• Adding a new priced model
• Updating provider prices, cache pricing, or tier conditions
• Expanding regex coverage for Bedrock, Vertex, Azure, or provider-prefixed
  model names
• Auditing default model prices for stale, missing, or unmatched provider
  pricing
• Auditing official provider docs for newly released major models that should
  receive default pricing and, when appropriate, selectable-model coverage

How to Read This Skill

• Use this SKILL.md as the high-level workflow and helper index.
• Open only the specific reference file that matches the task.

Quick Start Checklist

Adding a New Model

• Gather official pricing from the provider documentation.
• Generate a lowercase UUID for the model entry.
• Create a matchPattern that covers supported provider formats.
• Add at least one default pricing tier.
• Map every supported semantic usage bucket to the provider aliases Langfuse
  may persist.
• Insert the pricing entry into worker/src/constants/default-model-prices.json.
• Update packages/shared/src/server/llm/types.ts if the model should be
  selectable in playground or evaluation flows.
• Validate the JSON after editing.

Updating an Existing Model

• Update the relevant prices, keys, tiers, or regexes.
• Refresh updatedAt to today's ISO-8601 timestamp.
• Validate the JSON after editing.

Reference Map

Deterministic Helpers

• Pricing file validator:
  node .agents/skills/add-model-price/scripts/validate-pricing-file.mjs
• Match-pattern tester:
  node .agents/skills/add-model-price/scripts/test-match-pattern.mjs --model <modelName> --accept <sample...> --reject <sample...>
• Direct regex tester:
  node .agents/skills/add-model-price/scripts/test-match-pattern.mjs --pattern '(?i)^(openai/)?(gpt-4o)$' --accept gpt-4o openai/gpt-4o --reject gpt-4o-mini