Verify Pricing

Reygent tracks per-provider token pricing in src/pricing.ts to estimate workflow costs. The verify-pricing skill checks these values against live provider documentation and keeps them up to date.

Running the Skill

In a Claude Code session inside the reygent repo:

/verify-pricing

No CLI command or build step required — this is a Claude Code skill, not a reygent command.

What It Does

1. Reads the PROVIDER_PRICING object in src/pricing.ts
2. Fetches each provider's pricing page (stored in pricingUrl)
3. Compares three fields per provider:
   • inputCostPerMillion — cost per 1M input tokens (USD)
   • outputCostPerMillion — cost per 1M output tokens (USD)
   • cacheDiscountRate — fraction saved on cached tokens (0–1 scale)
4. Reports a comparison table with match/mismatch/unable-to-verify status
5. Applies updates:
   • All fields match → auto-updates lastVerified to today
   • Mismatches found → lists suggested changes, waits for confirmation before editing
   • Unable to verify → field skipped, no changes applied

Pricing Data Structure

Each provider entry in src/pricing.ts looks like this:

claude: {
  inputCostPerMillion: 3.00,
  outputCostPerMillion: 15.00,
  cacheDiscountRate: 0.90,
  supportsCaching: true,
  defaultModel: "claude-sonnet-4-5-20250929",
  pricingUrl: "https://www.anthropic.com/pricing",
  lastVerified: "2026-05-08",
},

Field	Type	Description
inputCostPerMillion	number	USD per 1M input tokens
outputCostPerMillion	number	USD per 1M output tokens
cacheDiscountRate	number	Fraction saved on cached tokens (0.90 = 90% savings, pay 10%)
supportsCaching	boolean	Whether provider supports prompt caching
defaultModel	string	Model these prices apply to
pricingUrl	string	URL fetched during verification
lastVerified	string	ISO date of last successful verification

Example Output

Provider     Field                 Current    Actual     Status
──────────────────────────────────────────────────────────────────────
claude       inputCostPerMillion   $3.00/M    $3.00/M    ✓ match
claude       outputCostPerMillion  $15.00/M   $15.00/M   ✓ match
claude       cacheDiscountRate     90%        90%        ✓ match
claude       lastVerified          2026-05-15            ✓ verified

codex        inputCostPerMillion   $2.50/M    $2.50/M    ✓ match
codex        outputCostPerMillion  $15.00/M   $15.00/M   ✓ match
codex        cacheDiscountRate     90%        90%        ✓ match

openrouter   inputCostPerMillion   $3.00/M    $3.00/M    ✓ match
openrouter   outputCostPerMillion  $15.00/M   $15.00/M   ✓ match
openrouter   cacheDiscountRate     50%                   ? unable to verify
──────────────────────────────────────────────────────────────────────
All verified pricing matches current provider documentation.

Apply these changes? (y/n)

Cache Discount Rate Normalization

Provider docs express caching savings in different formats. The skill normalizes all of them to a 0–1 decimal representing the fraction saved:

Doc Format	Meaning	Normalized Rate
"90% savings"	Save 90% of cost	0.90
"billed at 10%"	Pay 10%, save 90%	0.90
"0.1x base input price"	Pay 10% of base	0.90
"$0.30 vs $3.00"	Price comparison	0.90

When a provider's caching documentation is ambiguous or missing, the field is marked ? unable to verify rather than guessed.

Update Rules

• Auto-update: lastVerified date updates automatically when all verified fields match
• Manual approval: Pricing value changes require user confirmation before applying
• Partial verification: If any field can't be verified, lastVerified is not auto-updated for that provider
• No guessing: Fields that can't be extracted from provider docs are skipped, never estimated

Adding a New Provider

To add a provider to pricing verification:

1. Add an entry to PROVIDER_PRICING in src/pricing.ts with all required fields
2. Add the provider name to the ProviderName type union
3. Set pricingUrl to a page where token pricing is publicly listed
4. Run /verify-pricing to validate the initial values