chore: update docs + rename reset to clear

docs/tools/eval.md

@@ -155,7 +155,7 @@ Runs one subagent through `runStructuredSubagent(...)`:
 - `isolated` requests isolation. `apply` controls whether captured changes are integrated; `merge=false` selects patch mode while the normal setting controls branch mode.
 - `handle=true` returns `{ text, output, handle, id, agent }`, optional parsed `data`, and isolation metadata instead of only output/data.
 - Eval subagents are one-shot (`keepAlive=false`), are unregistered/disposed after completion, and **do not share the caller's eval executor** (`shareEvalSession=false`). Their code mutations therefore do not appear in the caller's retained VM/kernel.
-- Spawn policy, discovered-agent availability, task-depth limit 3, hard turn budget, subagent failure, strict schema failure, and isolation-apply failure are enforced as cell errors.
+- Spawn policy, discovered-agent availability, the `task.maxRecursionDepth` gate (default `2`; negative values disable the cap), hard turn budget, subagent failure, strict schema failure, and isolation-apply failure are enforced as cell errors.
 
 `parallel(thunks)` runs zero-argument callables in a bounded pool and preserves input order. `pipeline(items, ...stages)` applies each stage as a barriered wave. Pool width is read live from `task.maxConcurrency`; `0` means all items at once. The lowest-index failure is propagated.
 
@@ -173,7 +173,7 @@ Runs one subagent through `runStructuredSubagent(...)`:
 - Output sink default window: 50 KiB (`DEFAULT_MAX_BYTES`); live tail: 100 KiB; truncation helpers cap at 3000 lines.
 - Each JSON display value included in model-visible text is capped at 8000 characters; the full structured value remains in `jsonOutputs`.
 - Transcript preview defaults to 10 lines.
-- Eval subagent recursion cap: 3. Helper fan-out uses `task.maxConcurrency` (default 32, `0` unbounded).
+- Eval subagent spawning obeys `task.maxRecursionDepth` (default `2`; negative values allow unlimited depth). Helper fan-out uses `task.maxConcurrency` (default 32, `0` unbounded).
 - Malformed params are schema errors; unavailable/disabled backends and missing session are `ToolError`s.
 - Runtime exceptions become backend output with nonzero exit. Interactive stdin is an error. Output truncation does not fail the call.
 - A dead retained managed kernel may be replaced and the invocation retried once by its executor.