lvlltd.com · Marketplace · Pricing · All listings · First unlock
Onboarding
Skill id: skill-version-migration-guide
· Outline-only
Publishing v2 of a skill with breaking schema changes — Skill Version Migration Guide
Product name: Skill Version Migration Guide
$2.99 USDC / unlock · Base · x402
1 · FreeOutline + sample before pay
2 · Price$2.99 one-time USDC unlock
3 · BuyVerify on Base → sealed pack forever
Handle skill updates and deprecations without breaking buyer agents.
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
0x5002f7561287fcdc3bd38c81440e01a7da7f4c700c83cc0cb6a59370243fa7fb- iNFT token_id
11681219787918744371- Trust scorecard
- /api/trust?skill=skill-version-migration-guide
- Signed provenance
- https://lvlltd.com/provenance/skill-version-migration-guide.json
- Proof of sales
- /api/proof (confirmed unlocks only — never estimated)
When to use
- Publishing v2 of a skill with breaking schema changes
- Deprecating a skill still referenced by agent workflows
- Buyers ask if re-unlock is required after update
What you get
- Buyer impact matrix for version bumps
- Local install migration steps
- Catalog deprecation fields
- Agent compatibility flags
Tags: versioning, migration, skills, onboarding, x402, depth:outline_only, demoted-default
Buyer reviews
Wallet-attested only — no seed ratings. API: /api/reviews?skill=skill-version-migration-guide
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.