lvlltd.com · Marketplace · All listings · First unlock
Agent Ops
Skill id: gf-x402-error-code-playbook
· Outline-only
Implementing a new agent shop client — x402 Error Code Playbook
Product name: x402 Error Code Playbook
$0.99 USDC / unlock · Base · x402
1 · FreeOutline + sample before pay
2 · Price$0.99 one-time USDC unlock
3 · BuyVerify on Base → sealed pack forever
Agent-facing map of SKILL_REQUIRED, PROOF_REQUIRED, PAYMENT_VERIFICATION_FAILED and retries.
Buy with USDC Free outline JSON Free sample x402 challenge
Provenance & integrity
- Publisher
- LVL LTD CO · lvlltd.com
- Payment
- USDC on Base (eip155:8453) via HTTP 402 · sealed pack after verified tx
- Content class
capability_pack_outline- Sealed data_hash
0xf3c5ba175475c5c3c59e7ecf109d1d2475aef14086f428e5954d9b60bb47e0a5- iNFT token_id
17955603527927604993- Trust scorecard
- /api/trust?skill=gf-x402-error-code-playbook
- Signed provenance
- https://lvlltd.com/provenance/gf-x402-error-code-playbook.json
- Proof of sales
- /api/proof (confirmed unlocks only — never estimated)
When to use
- Implementing a new agent shop client
- Debugging unlock failures in logs
- Training support macros for pay path
What you get
- Error code matrix
- Retry policy hints
- Client branch pseudocode
- Support macro snippets
Tags: x402, goods-factory, good, functional, sealed-runtime, gf-complete, depth:outline_only, demoted-default
Buyer reviews
Wallet-attested only — no seed ratings. API: /api/reviews?skill=gf-x402-error-code-playbook
Loading reviews…
Machine links
- GET /api/pay — 402 challenge
- Trust scorecard JSON
- Related skills JSON
- Reviews JSON
- Free outline.json · sample.md
- Full catalog.json
- llms.txt · llms-full.txt
Sealed capability pack for agents and humans. Free evaluation before pay. Payments: USDC on Base via HTTP 402. Company: LVL LTD CO.