Add Utilia Solana Preflight

[mohamedkuch]

What changed

• Added utilia/solana-preflight as a native Solana x402 provider.
• Committed a deterministic Solana-only OpenAPI 3.1 snapshot with five paid routes and one health route.
• Added task-oriented routing language and spend-aware polling guidance.

Why

Utilia provides live priority-fee quantiles, unsigned transaction simulation, confirmed-failure diagnosis, token mint-risk evidence, and PDF-to-Markdown conversion. Listing it in pay-skills lets wallet-funded agents discover and call these APIs through pay skills search and the pay MCP catalog.

Agent impact

Agents can select the $0.002 fee feed immediately before building a transaction, use the higher-priced tools only when needed, and understand a bounded five-observations-per-hour spend pattern.

Validation

• npx -y @solana/pay catalog check providers/utilia/solana-preflight/PAY.md -v
  • 5/5 paid routes return valid Solana-mainnet x402 USDC challenges
  • free /healthz route classified correctly
• npx -y @solana/pay catalog check . --no-probe
  • registry check passed; existing repository warnings remain unrelated
• git diff --check

[greptile-apps]

Greptile Summary

Adds Utilia as a native Solana preflight provider.

• Defines routing and spend-aware guidance for transaction simulation, fee estimation, failure diagnosis, token-risk analysis, and PDF conversion.
• Adds a committed OpenAPI 3.1 specification covering five paid x402 routes and one free health route.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failures remain.

Important Files Changed

Filename	Overview
providers/utilia/solana-preflight/PAY.md	Adds valid provider metadata and usage guidance, with the previously conflicting PDF price and routing prefix corrected.
providers/utilia/solana-preflight/openapi.json	Adds the six-route API snapshot with consistent pricing and payment metadata.

_{Reviews (9): Last reviewed commit: "Update Utilia client version" | Re-trigger Greptile}

[mohamedkuch]

Addressed the automated review in 87b7a81: the PDF conversion price now matches the live/OpenAPI value ($0.0025), and use_case now uses the catalog-standard Use for ... routing prefix. Re-ran the live catalog verifier: all 5/5 paid routes passed Solana x402 compatibility.

[mohamedkuch]

@lgalabru — the automated review is now clean (5/5), the live catalog verifier passes all 5 paid routes, and both review threads are resolved. Would appreciate a maintainer review when convenient. Thank you.

[greptile-apps]

Want your agent to iterate on Greptile's feedback? Try greploops.

[mohamedkuch]

A new independent integration proof is available: OOBE Synapse merged its native Utilia plugin after completing a funded $0.002 USDC call through the full quote, authorization, signing, retry, and settlement path. The test evidence and transaction are recorded here: OOBE-PROTOCOL/synapse-client-sdk#50 (comment)

This PR remains mergeable, the Greptile review is 5/5, and the catalog validator passes all five paid routes. @lgalabru, could you review or identify any remaining blocker?