Affine Earth Math Court Remote

umc_resume

Resume a Universal Manifold Controller Long Play from its latest sealed tip (local cache first, then the NATS KV bucket UMC_LONG_PLAY) for the given domain, session_id and node_id; direct=true advances one turn after resuming. GRANT CLASS MESH: requires a caller identity (user_vqbit_hash 32 lowercase hex, entity_id or wallet_hash) or the call is REFUSED_GRANT_MESH_IDENTITY_REQUIRED. Measured 2026-09-02 with an identity: status CALORIE_GAV_LONG_PLAY_RESUME and the same tip shape as umc_direct (turn_index, tau_height, torsion_num/torsion_den, amplitudes, invariant_root_hex). Use umc_direct to create or advance a session; use this to pick up where a previous call, tab or cell left off.

Input Schema

TableJSON Schema

Name	Required	Description
`direct`	No	true: after resuming, advance one turn (equivalent to one umc_direct call)
`domain`	Yes	the domain the session was started under
`node_id`	Yes	the node id given to umc_direct
`session_id`	Yes	the session id given to umc_direct

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedSep 7, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 7, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 7, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 7, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 6, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 5, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 4, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

Changed4 schema fields changedSep 2, 2026

removedInput schema / properties / direct / description

Removed value: -"true: after resuming, advance one turn (equivalent to one umc_direct call)"

removedInput schema / properties / domain / description

Removed value: -"the domain the session was started under"

removedInput schema / properties / node_id / description
```
Removed value: -"the node id given to umc_direct"
```
removedInput schema / properties / session_id / description
```
Removed value: -"the session id given to umc_direct"
```

Changed4 schema fields changedSep 2, 2026

addedInput schema / properties / direct / description

Added value: +"true: after resuming, advance one turn (equivalent to one umc_direct call)"

addedInput schema / properties / domain / description

Added value: +"the domain the session was started under"

addedInput schema / properties / node_id / description
```
Added value: +"the node id given to umc_direct"
```
addedInput schema / properties / session_id / description
```
Added value: +"the session id given to umc_direct"
```

First observedSep 1, 2026

TDQS

A4.6/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden and meets it: it discloses the identity requirement (GRANT CLASS MESH) and the exact refusal code, the return shape (same as umc_direct with listed fields), the storage order (local cache first then NATS KV), and the effect of 'direct'. This goes well beyond typical descriptions, covering error conditions, side effects, and output format.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is dense but every sentence adds value—purpose, direct flag, auth, return shape, and sibling distinction are all covered. It is slightly verbose with the 'Measured 2026-09-02' detail, but the structure is logical and front-loaded with the main purpose, so it earns a 4 rather than a 5.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's complexity (auth, storage, return format, sibling routing) and the lack of annotations and output schema, the description covers all essential aspects: it explains the error code, return shape, storage behavior, and usage distinction. Nothing an agent needs to call it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so all parameters are described in the schema. The description adds minimal parameter-specific nuance beyond the schema; it mentions the 'direct' flag's effect but that is already in the schema. Baseline 3 is appropriate given full schema coverage and no significant additional explanation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool resumes a UMC Long Play from its latest sealed tip for given identifiers, and explicitly differentiates from umc_direct by specifying that umc_direct creates/advances a session while this picks up where a previous call left off. The verb and resource are specific and unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

It explicitly names the alternative (umc_direct) and the condition for choosing it, plus explains the 'direct' flag as equivalent to one umc_direct call. This provides clear when-to-use vs when-not-to-use guidance with no ambiguity.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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