Credential Tools

Five tools for secure secret storage, retrieval, and management with AES-256-GCM encryption and multi-layer output redaction.

Tools

Tool	Description	Confirmation
save_credential	Store a secret (API key, password, token)	always-confirm
resolve_credential	Retrieve credential fields for use in tools	auto-approve
list_credentials	List stored credentials (names only, no values)	auto-approve
test_credential	Test a credential by performing its auth flow	always-confirm
remove_credential	Delete a stored credential	always-confirm

How It Works

Credentials are encrypted at rest and injected at runtime into tool calls that need them. The agent never sees plaintext secrets in its conversation context.

1. User provides credential → agent calls save_credential → encrypted in store
2. Agent needs credential → calls resolve_credential → gets placeholder token
3. Placeholder injected into target tool → system substitutes real value at execution
4. Output redaction removes any accidental leakage from results

Credential Types

Type	Use Case
api_key	API keys sent as header values
bearer	Bearer tokens for Authorization header
basic	Username/password for HTTP Basic Auth
password	Generic passwords (SSH, databases, etc.)
oauth_client_credentials	OAuth2 client credentials flow
oauth_authorization_code	OAuth2 authorization code flow

Storing Credentials

The agent stores credentials when you provide them during chat:

User: "Here's my GitHub token: ghp_xxxxxxxxxxxxx"
Agent: [save_credential name="github-token" type="bearer" token="ghp_xxxxxxxxxxxxx"]
       Saved credential 'github-token' to the encrypted store.

Using Credentials

Credentials integrate with other tools:

With http_request

http_request:
  method: "GET"
  url: "https://api.github.com/repos"
  credential: "github-token"

With resolve_credential (for non-HTTP use)

For non-HTTP scenarios (SSH, database connections, form filling), resolve_credential returns placeholder tokens that are substituted at execution time. The real secret value never appears in the agent's context.

Placeholders are passed to shell_command, process_write, or browser_type where the system substitutes the real value at execution time.

Encryption

• AES-256-GCM symmetric encryption for all stored secrets
• Envelope encryption in platform mode (per-org Data Encryption Keys wrapped by a Key Encryption Key)
• Credentials are personal by default — only you can access them

Output Redaction

Multiple redaction layers prevent credential exposure:

1. Tool-level — Tools redact known credential patterns from their output
2. Agent-level — The runtime scans all tool results for stored values
3. Session-level — Session persistence strips matched patterns before writing
4. Stream-level — SSE streaming to Studio applies real-time redaction
5. Display-level — Studio UI masks any residual patterns

Managing Credentials in Studio

Studio Settings provides a credential management interface:

• View all stored credentials (names and types, never values)
• Add new credentials via form
• Delete credentials
• Publish credentials to team (team-scoped, inject-only access)

See Web & HTTP Tools for credential injection in API calls and Browser Automation for form-filling with secrets.