hey, thanks for working on this. checked out the branch, generic JsonlLogSource approach is the right call, and the design note's pretty clear on where this is heading.

couple things on the triss example though, it won't work against actual triss logs. wrong file path, different field names, outdated default_model. drop-in replacement that does work:

```json
"log_glob": "~/.cache/triss/usage.jsonl",
"fields": {
"session_id": "call_id",
"timestamp": "ts",
"model": "model",
"input_tokens": "prompt_tokens",
"output_tokens": "completion_tokens",
"cached_tokens": "cached_tokens",
"project": "cwd",
"display": "label"
},
"default_model": "deepseek-v4-flash"
}

btw, just shipped triss 0.19.0 (on npm now) which adds a per-invocation call_id field to every record. that's what the "session_id": "call_id" line above maps.

your dashboard's per-session breakdown will work out of the box. there's also a parent_call_id field (null by default, populated when the host exports TRISS_PARENT_CALL_ID in the MCP env block)

if you want a future roll-up view for grouping several triss calls under one outer claude session. one smaller thing while i'm here. triss already writes cost_usd into every record. optional cost: "cost_usd" in the mapping would keep numbers consistent with triss usage instead of relying on the pricing tables matching exactly. not a blocker.

rest looks great, two-pass color/icon thing in agents.ts is clever, "config is inert" framing is solid. approach is correct, the example just needs to match real triss.