Use CALIBER
Aria assistant
The operator and user guide for supervised assistant sessions, governed tool use, and explicit review boundaries.
Use this page when you need the practical operator or user path for Aria: start a session, understand supervised tool use, and know why a session paused, waited, or required review.
At a glance
| Task | Start here | Deep reference |
|---|---|---|
| understand what Aria can do | start with the execution and approval model | Assistant architecture |
| inspect supervised tool use | follow the session and approval path | Assistant architecture |
| connect Aria to tools, skills, or MCP | use the feature guides first | Tools, Skills, MCP servers |
| reason about queued human review | use the governance path | Trust and governance |
1. What Aria is for
Aria is CALIBER's permissioned assistant surface. It is designed to stay observable and supervised rather than acting as an opaque background agent.
2. Common tasks
| You want to... | Read this next |
|---|---|
| understand why the assistant stopped or waited | Assistant architecture |
| attach skills, tools, or MCP capabilities | Tools, Skills, MCP servers |
| reason about trust and review | Trust and governance |
3. Common failure modes
| Symptom | First thing to check |
|---|---|
| The assistant paused instead of finishing | a human approval or review boundary was reached |
| A tool is visible but unavailable | the tool is blocked by policy or missing runtime access |
| Aria answered, but you cannot justify the answer | inspect the evidence, tool trace, or retrieval path |