Generation offers active registered tools through positional system entries and
hands a tool-calling answer to parallel or sequential pi.tool tasks and a
pi.post-tools task that applies addTools/terminate and continues the run. Tool
tasks validate, run beforeTool/afterTool, record intent with the replay policy,
publish bounded, sanitized, adaptively throttled progress in pi.live.tools, and
write results with a rendered diagnostics block. Hook dispatch with conversation
and subtree scopes, prepareArguments, HarnessOptions.env, and read/bash/edit/write
tools in pi-durable/tools. The env shell now streams raw output and spills past
thresholds; its bounded capture and publisher are removed.
Submissions with request-ID deduplication and handles, the pi.live run
control and presentation document, the built-in pi.generation task
(system prompt preparation, streamed durable partials, retries, deferred
polling, abort), typed entry tokens, stream options and retry policy,
TaskRuntime reads, Tx.settleSubmission, registry conversation setups,
Storage.scanSubmissions, Harness.inspect, and byTaskId attribution.
Waiting calls enable scheduling. The scratch tour is split into
test/examples.
pi.live turn control and generation presentation, built-in entry kinds,
pi.generation checkpoint and phases, typed entry tokens, built-in tasks in
the registry, TaskRuntime reads, stream options and retry policy config,
Harness hook for scheduler-written outcomes, and createConversation without
input.
Adds defineTask, registry-resolved phase handlers, and a scheduler that
decides every task transition in one callback on the Session line:
reservation with migration, dependencies, precedence rules in a step
before each phase, handover to replaced definitions, direct-task abort
(mark, signal, join, fresh abort invocation), orphaning of blocked tasks,
open reconciliation, and close that joins invocations without writing
outcomes. runtime.commit() callbacks return the typed next state; Tx no
longer exposes setTask. Adds Harness.resume, getTask, waitForTask,
abortTask, and task-aware waitForIdle; RegistryReader.subscribe wakes
the scheduler.
Implements Pico5 Package 13: Harness.open over a Session with an application-owned
registry (tools, tool wrappers, hooks, tasks, system prompt sections; batched
publication, stable keyed order), lazy root creation with init, atomic
create/fork with init, conversation-bound commits, fork-aware entries, model
context derivation, and the built-in ConversationConfig document.
Fixes cached documents skipping migration when accessed with another definition
version. Rewrites the Pico5 spec and handoff to the registry/system-prompt
design and removes the superseded live-registries proposal.
Storage reports replayed deltas after the selected base; Session tracks the
count across adopted writes so checkpoint predicates can bound replay.
Also adds internal reserved-root creation and conversation-bound commit
defaults for the upcoming Harness.
Replace the alternate tracker implementations with the optimized immutable overlay, validate draft placements as strict JSON, and document the ownership contract. Consolidate tracker tests and benchmarks around the canonical implementation.
Name the Astra-immutable-optimized Chord Delta tracker as the Packages 6-7
prerequisite, include the minimal generic Tx table surface in that
milestone, and revoke drafts at callback settlement. Drop the Chord
prerequisite from Package 11 because the existing replicated-state source
contract already matches. Specify that tool stream() never spills; tools
spill through their execution environment.
Port and extend the agent environment tests for NodeExecutionEnv, output
capture, adaptive publishing, and truncation, including exact-byte
truncation, flushing, line-reader cancellation, spill backpressure, and
Buffer-free UTF-8 counting.
Fix truncation reporting when bytes and lines are both exceeded, when only
bytes are exceeded at the line cap, and when small limits trim multi-byte
edge characters. Report the full size of oversized newline-terminated tail
lines. Resolve durable test imports from source so tests run unbuilt.
Set Pico tool output defaults to 50 KiB and 2,000 lines.
Keep clone and GC regressions plus a standalone traversal benchmark. Archive the discarded graph experiment and baseline comparisons in durable docs, including the remaining transient-memory and traversal-speed costs.
