- name
- credentials
- description
- Encrypted credential store — add, retrieve, list, and delete named secrets (API keys, tokens, passwords) stored AES-256-GCM encrypted at ~/.aibtc/credentials.json. Each write operation requires the master password; listing metadata does not.
- metadata
- {"author":"whoabuddy","author-agent":"Trustless Indra","user-invocable":"false","arguments":"add | get | list | delete | rotate-password","entry":"credentials/credentials.ts","requires":"","mcp-tools":"credentials_list, credentials_get, credentials_set, credentials_delete, credentials_unlock","tags":"infrastructure, sensitive"}
# Credentials Skill
Manages arbitrary named secrets — API keys, tokens, passwords, URLs — encrypted at rest using AES-256-GCM with per-credential PBKDF2 key derivation. Values are stored as encrypted blobs in `~/.aibtc/credentials.json`; only identifiers, labels, categories, and timestamps are stored in plaintext. No wallet is required — the credential store uses its own master password independent of the wallet system.
## Usage
```
bun run credentials/credentials.ts <subcommand> [options]
```
## Subcommands
### add
Add a new credential or update an existing one. The value is encrypted with AES-256-GCM using a key derived from the master password via PBKDF2 (100,000 iterations, per-credential salt).
```
bun run credentials/credentials.ts add --id <id> --value <value> --password <pass> [--label <text>] [--category <cat>]
```
Options:
- `--id` (required) — Normalized credential identifier (e.g. `hiro-api-key`, `openrouter-token`)
- `--value` (required) — Plaintext secret value (sensitive — not stored)
- `--password` (required) — Master password for encryption (sensitive)
- `--label` (optional) — Human-readable label (default: same as id)
- `--category` (optional) — Category tag such as `api-key`, `token`, `url`, or `secret` (default: `secret`)
Output:
```json
{
"success": true,
"id": "hiro-api-key",
"label": "Hiro API Key",
"category": "api-key",
"createdAt": "2026-01-01T00:00:00.000Z",
"updatedAt": "2026-01-01T00:00:00.000Z"
}
```
### get
Decrypt and return a credential value. The plaintext value appears in the output — handle with care.
```
bun run credentials/credentials.ts get --id <id> --password <pass>
```
Options:
- `--id` (required) — Credential identifier
- `--password` (required) — Master password for decryption (sensitive)
Output:
```json
{
"id": "hiro-api-key",
"label": "Hiro API Key",
"category": "api-key",
"value": "hiro_api_key_xxxxxxxxxxxxxxxx",
"createdAt": "2026-01-01T00:00:00.000Z",
"updatedAt": "2026-01-01T00:00:00.000Z"
}
```
> Tip: Extract the value in scripts with `$(bun run credentials/credentials.ts get --id hiro-api-key --password $CRED_PASS | jq -r .value)`
### list
List all credential identifiers and metadata. No decryption is performed and no secret values are returned.
```
bun run credentials/credentials.ts list
```
Output:
```json
{
"count": 2,
"credentials": [
{
"id": "hiro-api-key",
"label": "Hiro API Key",
"category": "api-key",
"createdAt": "2026-01-01T00:00:00.000Z",
"updatedAt": "2026-01-01T00:00:00.000Z"
}
]
}
```
### delete
Permanently delete a credential. Requires the master password (to verify ownership) and an explicit confirmation string.
```
bun run credentials/credentials.ts delete --id <id> --password <pass> --confirm DELETE
```
Options:
- `--id` (required) — Credential identifier to delete
- `--password` (required) — Master password for verification (sensitive)
- `--confirm` (required) — Must be exactly `DELETE`
Output:
```json
{
"success": true,
"deleted": "hiro-api-key",
"message": "Credential \"hiro-api-key\" has been permanently deleted."
}
```
### rotate-password
Change the master password by atomically re-encrypting all credentials. Decrypts every credential with the old password and re-encrypts with the new one. If any credential fails to decrypt, the operation is aborted before any changes are written.
```
bun run credentials/credentials.ts rotate-password --old-password <pass> --new-password <pass>
```
Options:
- `--old-password` (required) — Current master password (sensitive)
- `--new-password` (required, min 8 chars) — New master password (sensitive)
Output:
```json
{
"success": true,
"message": "Password rotated. 3 credentials re-encrypted.",
"count": 3
}
```
## Security Notes
- Credentials are AES-256-GCM encrypted with a unique salt and IV per credential — a compromised credential does not weaken others
- PBKDF2-SHA256 with 100,000 iterations makes brute-force attacks expensive
- The master password is never written to disk — pass it via `--password` flag or environment variable substitution
- `~/.aibtc/credentials.json` is written with mode 0o600 (owner read/write only)
- The credential store is independent of the wallet system — a separate master password is recommended
- `delete` and `rotate-password` verify the password by decrypting before mutating the store
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