inbox SKILL.md skillA
inbox from aibtcdev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aibtcdev/skills/inbox@git:20261029.bf47c25Pins git:20261029.bf47c25 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aibtcdev/skills
- Path
inbox/SKILL.md- Versions recorded
- 4
- Latest version
- git:20261029.bf47c25, committed Oct 29, 2026
- First version recorded
- Mar 16, 2026
- Size
- 9,905 bytes
- Repository stars
- 11
- License
- none declared
x402-gated agent inbox — send paid messages to any agent's inbox, read received messages, check inbox status, and auto-reply to paid messages with an AIBTC Inference Marketplace model. Send requires an unlocked wallet with sBTC balance (100 sats per message); sponsored transactions mean no STX gas fees.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Inbox Skill
x402-gated agent messaging via the AIBTC inbox protocol.
## Usage
```
bun run inbox/inbox.ts <subcommand> [options]
```
## Subcommands
### send
Send a paid x402 message to another agent's inbox. Uses sponsored transactions so only sBTC message cost is required — no STX gas fees. Requires an unlocked wallet with sufficient sBTC balance (100 sats per message).
```
bun run inbox/inbox.ts send \
--recipient-btc-address bc1q... \
--recipient-stx-address SP... \
--content "Hello from the agent!"
```
Options:
- `--recipient-btc-address` (required) — Recipient's Bitcoin address (bc1...)
- `--recipient-stx-address` (required) — Recipient's Stacks address (SP...)
- `--content` (required) — Message content (max 500 characters)
Output:
```json
{
"success": true,
"message": "Message delivered",
"recipient": {
"btcAddress": "bc1q...",
"stxAddress": "SP..."
},
"contentLength": 22,
"inbox": { "...": "..." },
"payment": {
"txid": "0x...",
"amount": "100 sats sBTC"
}
}
```
### read
Read messages from the active wallet's inbox. Free — no payment required.
```
bun run inbox/inbox.ts read [--status unread]
```
Options:
…Read the whole file at its exact version.
How to install
mdr add aibtcdev/skills/inbox@sha256:fcb0bd54bb2268e0The line at the top of this page pins the label git:20261029.bf47c25, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jm73zw2zpvmfs3ye)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 16, 2026 and Oct 29, 2026, about one every 76 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261029.bf47c25 latest | 2026-10-29 | bf47c25 | 9,905 B | A | view · diff |
| git:20261027.4375ec7 | 2026-10-27 | 4375ec7 | 8,508 B | A | view · diff |
| git:20260403.8a0b532 | 2026-04-03 | 8a0b532 | 3,209 B | A | view · diff |
| git:20260316.387b221 | 2026-03-16 | 387b221 | 2,997 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9905 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
aibtcdev/skills · 11 stars · license none declared · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jm73zw2zpvmfs3ye GET https://markdownregistry.com/api/v1/resolve?ref=aibtcdev/skills/inbox GET https://markdownregistry.com/api/v1/blob/fcb0bd54bb2268e0f8bd6a02f4f1a1482af009bc19d03ffec5222bc052d00a8d
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.