- Removes `model` field from task item/schema, TaskParams, and TaskItem types.
- Removes model selector validation, formatting, and approval display logic.
- Updates task tool priority docs to reflect that model is no longer per-call overridable.
- Updates eval agent() helper docs and prompt templates to remove model parameter.
- Updates tests to reflect removal of model override capability.
- Renamed task wire fields, replacing `assignment` and `description` with `task` and `name` while removing `role` references.
- Implemented automated task UI label generation using a tiny model to replace manual role descriptions.
- Updated task execution and rendering logic to support per-item agent resolution and dynamic badge display.
- Migrated schemas, prompts, and test suites to enforce the new flat task structure and agent-centric policy.
- Centralized task concurrency and delegation logic by moving instructions from individual tool descriptions to the system prompt.
- Introduced conditional system prompt logic to handle model-specific task policies, including support for GPT-5.6.
- Added infrastructure for task concurrency normalization and IRC steering state within the system prompt configuration.
- Refactored prompt inputs and session logic to enable dynamic system prompt updates based on model-specific policy cohorts.
- Implemented safe `releasePermit` helper to track whether a concurrency permit has been acquired before releasing.
- Guarded against double-releasing or releasing unacquired semaphore permits during queued job cancellation or abort events.
- Added comprehensive unit tests validating concurrency cap enforcement when queued jobs are cancelled.
Three independent paths bypassed the user's subagent caps:
1. TaskTool.#getSpawnSemaphore sized the spawn semaphore from
task.maxConcurrency only on first use and never re-read the setting,
so lowering the cap mid-session left every later spawn running
against the old ceiling. Resize the live semaphore against the
current setting on each acquire.
2. The task tool prompt threaded MAX_CONCURRENCY through to the
template but never rendered it. A model with task.maxConcurrency=1
could still emit oversized tasks[] batches that registered
immediately and piled up behind the semaphore. Render a 'Concurrency
cap' directive in task.md whenever the setting is bounded.
3. The eval agent() bridge's assertDepthAllowed gated only against
the hardcoded EVAL_AGENT_MAX_DEPTH=3 and ignored
task.maxRecursionDepth, so a user-tightened recursion limit
(0='None', 1='Single') still let cell-spawned subagents recurse
to depth 3. Mirror the task tool's canSpawnAtDepth gate, clamped
by the hard ceiling.
Fixes#3895
Normalize the configured semaphore max before deciding whether the spawn
limit is bounded. Fractional values between 0 and 1 now truncate to 0 and
fall through to the unbounded path instead of storing 0 and deadlocking
the first acquire.
Fixes#3305
The session-scoped spawn Semaphore clamped its max via Math.max(1, max), so
task.maxConcurrency: 0 — labeled 'Unlimited' in the settings UI — serialized
subagent spawns one at a time instead of releasing every eligible seat.
The constructor now treats max <= 0 (and any non-finite input) as unbounded
via Number.POSITIVE_INFINITY, so the existing 'current < max' check naturally
permits every acquire. Mirrors the eval parallel()/pipeline() worker-pool
semantics (runEvalConcurrency in eval/concurrency-bridge.ts), which already
treats 0 as 'run every item at once'.
Fixes#3305
- Removed `resume` from task params and schema, requiring agent and assignment inputs.
- Dropped resume continuation paths in task execution and call rendering, always spawning a new agent.
- Removed the `irc.enabled` setting and computed IRC availability by task-depth rules.
- Updated task follow-up guidance to use IRC messaging/history links instead of `task(resume:)`.
can1357