# AISkills402: Session Handoff Note SKILL.md

> AISkills402: Session Handoff Note SKILL.md is a paid API for AI agents from api.aiskills402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-11-01).

Downloads the 'Session Handoff Note' SKILL.md file — a tested AI agent skill for summarizing done items, open issues, and next steps at session end — purchased once for $0.05 USDC via x402 on Base.

## Facts

- Endpoint: GET https://api.aiskills402.com/v1/skills/session-handoff-note/file?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aiskills402-session-handoff-note-skill-md-7f3c554f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_S4CVsQYIhH4R8XB0Nq_t7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability aiskills402-session-handoff-note-skill-md-7f3c554f
```

Example prompt: Buy me the Session Handoff Note skill from AISkills402 — I need the SKILL.md file that teaches an agent to summarize what's done, what's still open, and what the next step is, paid in USDC on Base.

## When to prefer this

Choose this endpoint when an AI agent needs a tested, reusable SKILL.md instruction file specifically for producing session handoff notes (done / open / next step summaries), and you want a one-time $0.05 USDC micropayment via x402 on Base with permanent re-download rights. Prefer this over prompt-engineering your own handoff logic when you want a vetted, versioned skill file you can load into any agent without rebuilding it each time.

## Known failure modes

- Payment not completed or x402 headers missing — returns 402 Payment Required
- Invalid or expired payment token — returns auth error
- Network timeout during file retrieval — returns 5xx error
- SHA256 mismatch indicating file corruption — agent should re-download
- Re-download token URL used before purchase settled on-chain — returns pending or error state

## How this service works

Session Handoff Note: Done, Open, Next Step — Turns the log of one agent session (the user's requests, tool calls with their outputs, errors and the agent's own remarks) into the note the next session starts from, as strict JSON with done, not_done, open, decisions, files and next_step. Work counts as done only when the log shows a result, with the log line that proves it; a command that was issued, an output that was cut off or the agent's own "done" is not a result, an error with no successfu…

## Output

Returns a JSON object containing the full SKILL.md file content (UTF-8 encoded), the skill name and identifier, a SHA256 checksum for integrity verification, the version number (e.g. 1.0.0), a settlement receipt with the Base transaction hash, and a re-download token URL so the buyer can retrieve the file again without paying.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "file": {
   "name": "SKILL.md",
   "content": "<the SKILL.md file>",
   "encoding": "utf-8"
  },
  "name": "Session Handoff Note: Done, Open, Next Step",
  "skill": "session-handoff-note",
  "sha256": "<sha256 of SKILL.md>",
  "receipt": {
   "tx": "0x<settlement transaction>",
   "settled": true
  },
  "version": "1.0.0",
  "redownload": {
   "url": "<api>/v1/purchases/<token>",
   "token": "<64 hex chars>"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aiskills402-session-handoff-note-skill-md-7f3c554f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.aiskills402.com](https://www.zero.xyz/host/api.aiskills402.com/llms.txt)