========== TRACE ==========

NAME: tool_search.json
LLM CALLS: 5 | TOKENS: 8310 in (6100 cached) → 370 out | WALL TIME: 10.0s

========== REQUEST 1 ==========

--- INSTRUCTIONS ---

Never refund more than the original charge.

--- SYSTEM PROMPT ---

You are an operations assistant. The full tool catalogue is too large to load up front: search for the tools you need, then load the capability that owns them before calling anything.

--- USER PROMPT ---

Refund invoice INV-4471 and tell me what the customer was charged.

========== RESPONSE 1 · claude-fable-5 · 1240 in → 88 out ==========

--- THINKING ---

I do not have a refund tool yet. Search the catalogue for billing tools before assuming anything is callable.

--- TOOL CALL: search_tools [TOOL-SEARCH] ---

QUERIES:
refund invoice
billing charge lookup

========== REQUEST 2 ==========

--- TOOL RETURN: search_tools [TOOL-SEARCH] ---

DISCOVERED TOOLS: refund_invoice, get_invoice, list_charges

--- TOOL AVAILABILITY ---

+refund_invoice
+get_invoice
+list_charges

========== RESPONSE 2 · claude-fable-5 · 1510 in (1100 cached) → 24 out ==========

--- TOOL CALL: load_capability [CAPABILITY-LOAD] ---

CAPABILITY: billing

========== REQUEST 3 ==========

--- TOOL RETURN: load_capability [CAPABILITY-LOAD] ---

**Billing capability**

- Refunds are irreversible; always read the invoice first.
- Amounts are in minor units (cents).

--- TOOL AVAILABILITY ---

+void_invoice

========== RESPONSE 3 · claude-fable-5 · 1720 in (1500 cached) → 140 out ==========

--- BUILTIN TOOL CALL: tool_search [TOOL-SEARCH] ---

QUERIES:
dispute escalation

--- BUILTIN TOOL RETURN: tool_search [TOOL-SEARCH] ---

DISCOVERED TOOLS: none

No matching tools found. The tools you need may not be available.

--- TOOL CALL: get_invoice ---

ARGUMENTS:
{"invoice_id":"INV-4471"}

========== REQUEST 4 ==========

--- TOOL RETURN: get_invoice ---

{"invoice_id":"INV-4471","customer":"Client A","amount_cents":24900,"currency":"EUR","status":"paid"}

========== RESPONSE 4 · claude-fable-5 · 1880 in (1700 cached) → 46 out ==========

--- TOOL CALL: refund_invoice ---

ARGUMENTS:
{"invoice_id":"INV-4471","amount_cents":24900}

========== REQUEST 5 ==========

--- TOOL RETURN: refund_invoice ---

{"refund_id":"RF-9021","amount_cents":24900,"state":"pending"}

========== RESPONSE 5 · claude-fable-5 · 1960 in (1800 cached) → 72 out ==========

--- TEXT ---

Refund **RF-9021** is pending for invoice INV-4471.

The customer was charged **249.00 EUR**, and that is the full amount being returned.
