The model treated the combined 'source/path' string (as printed in
search result lines, read-result headers and refusals) as the
document's identity and passed it as 'source' — e.g.
source='homelab/active/container_caddy/caddy.md' instead of
source='homelab', path='active/container_caddy/caddy.md'.
- Rewrite the read_document description with the split rule (source =
before the FIRST '/', path = after it) and a worked example; share
the source/path parameter descriptions between read_document and
search_documents; map search result lines back onto the split.
- New _resolve_document: on a lookup miss with a '/' in source, retry
at the first slash (source names are directory basenames and can
never contain '/'), plus a continuation candidate for a split at a
later slash; a self-corrected combined form for an already-in-context
document is still rejected as ALREADY_IN_CONTEXT.
- A slash-carrying source that matches nothing gets an educational
refusal naming the corrected arguments instead of the generic line
that repeated the combined form.
Verified live against aipi (lite) + the imported homelab KB: A/B on
the exact failure scenario (5 runs each, right after a
combined-source search result) — old descriptions 5/5 combined, new
descriptions 5/5 clean; two live UI turns (Playwright) produced only
clean split arguments, including a multi-hop read of
install_caddy_deskwork.yaml that landed in done.sources. Full suite:
1376 passed, app coverage 99% (agent.py 100%), ruff + pyright clean,
agent/search E2E green in isolation.
Grounded chat turns now run the agent loop (app/rag/agent.py) instead
of a bare chat_stream: while the per-turn budgets last
(BOR_AGENT_LIST_CALLS / BOR_AGENT_READ_CALLS, default 1 each) the model
gets list_documents (the indexed catalog, /api/docs order) and
read_document (full text, never truncated — A7-revised contract); once
both budgets are spent the tools key is dropped from the request and
the model must answer. Rejected calls (unknown tool, unknown/missing
path, document already in context, spent budget) consume no budget.
Budgets 0/0 make exactly one tools=None request — byte-identical to
the pre-phase path (budgets-as-kill-switch). Deflected turns keep the
direct chat_stream (A8 unchanged; the LOW prompt never carries the
<tools> section).
SSE contract gains {"type":"tool","name":...,"argument":
"source/path"|null} frames ahead of the answer deltas (PLAN §4
extension, owner permission 2026-08-26); done.sources, query_log.sources
and the per-turn log line (gains tool_calls=N) report the retrieval
docs + read docs, deduped. The UI shows a "calling tool"
button/label state and one visible .tool-call line per call above the
answer; the lines persist with the chat record and re-render on
reload. chat_stream passes tools through and accumulates streaming
tool_calls deltas into ToolCallPiece (tools=None stays byte-identical).
E2E: deterministic mock tool flow ("use your tools" + <tools> marker:
list -> read first catalog line -> quoted answer) plus the story suite
(marker flow, reload re-render, plain/deflected no-tool regressions).
Docs: .env.example + README (the two tools, the budgets, the SSE tool
frame, the "calling tool" UI state).
probe: turbo tool_calls=supported 2026-08-26 (uv run python -m
scripts.llm_probe --tools — non-streaming + streaming
finish_reason=tool_calls, indexed delta.tool_calls partials)
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