An awaited refresh could resolve before its availability pass saved. Passes
ran concurrently, and only the most recently started pass could save its
result; a superseded pass returned without saving and refresh() still
resolved. At startup, the awaited refresh could lose to a fire-and-forget
refresh started by an extension provider registration, so initial model
selection read a snapshot without that provider and fell back to another
provider's default. A login also cancelled any full pass that was running.
Availability passes now run one at a time. A request made while a pass is
waiting to start joins it, so a caller always gets a pass that saw its
changes. Each pass has a 10 s timeout, so a hung auth check or credential
store no longer blocks the caller forever (#7301). A failed or timed-out
provider check keeps that provider's previous state and is reported in
getError().
The snapshot drops configuredProviders and all; hasConfiguredAuth reads
the auth map.
Refs #8810, #9884
Codemode sums the usage of models.classify() calls into its tool result and shows each call's cost. Usage of tools called through ctx.executeTool() is added to the calling tool's result usage instead of being dropped.
This adds codemode and MCP support to pi. Codemode (packages/codemode) runs
model-written JavaScript in a QuickJS wasm VM inside a worker. From there the
script calls pi's tools as async functions, uses a per-session store, and can
read the model catalog and run classifiers. The codemode tool in coding-agent
is compatible with Codex's exec tool, and codemode.mode works like Codex's
tool modes (on or only). Large results are written to a JSON temp file. MCP
(packages/mcp) is a standalone client for stdio and streamable HTTP servers,
with OAuth.
The core only gets general mechanisms; codemode, tool_search and MCP are
built-in extensions that use them. Other extensions can replace these
built-ins. Tools declare an exposure: direct, model-only, codemode, deferred
or hidden. prepareLoadout() lets an orchestrating tool change which tool
declarations the model sees. ctx.executeTool() runs nested calls through
validation and the tool_call/tool_result hooks. Those calls emit events with
parentToolCallId and are recorded as bounded nestedCalls on the parent
result, which compaction and HTML export use. Tools can also return
structuredContent with an outputSchema, and can report errors with isError
instead of throwing. MCP servers come from mcp.json (global, or per project
after the project is trusted) or from pi.registerMcpServer(). They are
managed with /mcp and pi mcp list|login|logout, and their runtimes load on
first use.
Closes#10040
This adds experimental support for virtual models. A virtual model is a catalog entry that an extension registers with pi.registerVirtualModel(). It does not talk to a provider itself; for every request it picks a physical model and thinking level. The motivation is to make routing policies pluggable: plan on a strong model and implement on a cheap one, pick a model with a classifier, or move to a larger window when the context grows. Today this needs model switching by hand or hacks in prepareRequest.
The selection stays virtual: model_change records it, resume restores it, and each response records the physical model and thinking level that produced it. Router state can be stored on the session branch, so it follows /tree and forks and survives compaction. Context limits, compaction and image sizing use the physical model a request was routed to. examples/extensions/jev-router.ts shows a full router that uses the Jev classifier to pick Sol or Terra for planning and hands off to Luna after the first edit. docs/virtual-models.md describes the API.
A new session was only written to disk once the first assistant message
existed. If pi exited during the first turn (Ctrl+C twice while streaming,
or the process was killed), the user's prompt was lost and the session
never appeared in /resume.
The file is now created as soon as the session has a user or assistant
message. A session with only setup entries (model, thinking level) still
stays in memory, so starting pi and quitting without chatting leaves no
file. Forking uses the same rule through a shared helper, so the two paths
cannot drift apart and write the header twice (#1672).
closes#10000
Successful RPC prompt, steer, and follow_up responses include
data.disposition ("handled", "queued", or "started" for prompt), so clients
know whether to wait for agent_settled.
fixes#9098
Separate conversation content from instructions and replace prefix/suffix wording with continuation-oriented summarization guidance.
Hopefully this avoids the refusals.
Fixes#9652
Since 0.86 the prompt and tool declarations live in transcript system
messages, so a context handler that filters or slices messages could drop
them. After extension-driven compaction this sent requests without built-in
tools and made Codex emit raw tool-call text.
context handlers now see the conversation only. An unchanged list keeps the
transcript as is; a changed list gets the replayed prompt sections and tool
declarations as one leading system message. Handler-added system messages
are kept after it.
Add context_with_system, which runs after every context handler on the full
transcript and sends its result verbatim, for extensions that need to edit
system messages per request. Dropping the leading system message is reported
as an extension error.
closes#9789, closes#9822
Make SessionManager projections authoritative for provider requests, add append-only context edits and actionable turn boundaries, and preserve existing queue scheduling during continuation and recovery.
Fall back to the latest safe assistant boundary when trailing tool results exceed the retained-token budget, allowing older history to compact before the next provider request.
Closes#9740
* fix(coding-agent): fail closed on user bash hook errors
Prevent failed execution-routing hooks from falling back to the local shell.
Fixes#9068
* fix(coding-agent): validate user bash hook results
* docs(coding-agent): clarify user bash result semantics
* docs(coding-agent): streamline user bash semantics
* fix(coding-agent): strengthen user bash regressions
* docs(coding-agent): clarify user bash breaking change
This change makes system prompt text and tool changes part of the transcript rather than silently rewriting its starting conditions. This lets Pi record when instructions changed or tools became available, restore that state after resuming or navigating branches, and preserve cached prompt prefixes where the upstream supports it.
* fix(coding-agent): keep selector status markers visible
- place status markers before labels
- strike unavailable scoped models and update tests
* fix(coding-agent): align scoped model toggle behavior
- show checks for the all-enabled state
- toggle individual models consistently and add coverage
* docs(coding-agent): add changelog entry
* fix(coding-agent): keep trust marker visible while browsing
- move the saved marker before the trust option
- update tests and changelog
* fix(coding-agent): mark per-model thinking overrides
- add the leading level marker
- update tests and changelog
Run next-turn preparation only when the agent loop continues, allowing threshold compaction before the next provider request. Restore interactive progress when the same run resumes.
Closes#6879
Important to notice:
this changes when prepareNextTurn & prepareNextTurnWithContext are invoked:
the now run only when a next turn actually happens, and after shouldStopAfterTurn.
Extension messages sent with triggerTurn: false while the agent was
running were pushed into agent state and the session tree immediately,
landing between an assistant tool call and its result. Providers that
validate message order reject the replayed history. Queue them during
the run and append at turn_end, mirroring recordBashResult.
closes#8537
* fix(coding-agent): keep model and thinking level changes session scoped
* fix(coding-agent): persist requested default thinking level
* feat: --default arg to persist
* fix
* fix(coding-agent): keep model and thinking level changes session scoped
* fix: make default thinking level per model show list of models
* cleanup export
