- ai: StreamingJsonParser / ToolCallArgumentsStream read each argument delta once (tolerant,
immutable snapshots, linear cost); every provider, pi-messages and the faux provider use it
and keep stream state (partialJson, partialArgs, index, customInput, streamIndex, Bedrock
reasoning bytes) off the content blocks; grammar tool input appends per delta
- agent: streamProxy uses the same parser
- chord: Delta append ops own their text (ownedSlice), so ops and replicas no longer keep the
whole growing string alive
- durable, ai, mcp: bounded error excerpts and summaries own their characters
- coding-agent: tool calls render streamed arguments once per frame, not once per delta
/model and /scoped-models listed only `id [provider]`, so renamed
overrides from models.json were invisible in the list. Rows now show
the name in parentheses when it has words the id lacks, e.g.
`minimax/minimax-m3 (MiniMax M3 [parasail]) [openrouter]`. Names that
only restate the id with different casing, separators, or a dropped
namespace/version suffix stay hidden.
closes#5916
Only x64 and arm64 map to prebuilt release archives. ARM32 and ia32 previously
fell back to x86-64 binaries; now pi warns and recommends the system package manager.
fixes#11209
Fix docs and `--help` drift: update the provider checklist to the
`src/api` layout, fix broken MCP anchors, and document `/mcp`, `pi mcp
add|remove`, `PI_CLEAR_ON_SHRINK`, and `"disabled"` timeouts.
closes#11243
`execCommand()` (the function behind `pi.exec()`) decoded each stdout
and stderr chunk on its own with `data.toString()`. When a multi-byte
UTF-8 character was split across two pipe chunks, each half was turned
into U+FFFD, so the result was corrupted. For example, `"你好"` came back
as `"���好"` while the command still exited with code 0.
This change gives stdout and stderr each their own
`StringDecoder("utf8")`. A decoder holds back incomplete bytes until the
rest of the character arrives. Both decoders are flushed with `end()`
before the promise resolves, on both the success path and the error
path. `waitForChildProcess()` can resolve without a stream `end` event,
so the decoders are flushed there and not in an `end` handler. The
return shape, exit codes, and kill behavior are unchanged.
**Testing**
- Added a regression test to `packages/coding-agent/test/exec.test.ts`.
The child process splits `"你好"` across two writes on both stdout and
stderr. The test fails without the fix and passes with it: `node
../../node_modules/vitest/dist/cli.js --run test/exec.test.ts` reports 3
passed.
- `npm run check` passes.
- Reproduction from the issue: a child that writes the first byte of
`"你好"` and then the rest 100 ms later. Before the fix the result was
`{"stdout":"���好",...}`. After the fix it is
`{"stdout":"你好","stderr":"","code":0,"killed":false}`.
Fixes#11312
Requested by @davidbrai
---------
Co-authored-by: triagent <triagent@localhost>
Co-authored-by: David Brailovsky <davidbrai@gmail.com>
fix(coding-agent): start when a configured package fails to install
A package in settings.json that could not be installed (registry
unreachable, package missing, failing git prepare step) crashed startup
with an uncaught rejection and a raw Node stack.
Resolving packages now catches the install failure, skips that package
the same way offline mode does, and reports it as an extension warning:
Warning: Extension package "npm:foo": failed to install (...).
Run "pi remove npm:foo" to remove it from settings.json.
Project packages point at `pi remove <source> --local`. `-e` sources
say to check the source instead. Pi tries the install again on the next
start or /reload.
--help and --list-models now print runtime diagnostics, so the warning
shows there too. pi config prints it as well. pi install and
pi update --extensions still fail with a non-zero exit.
closes#11088
fuzzyMatch scored only the greedy leftmost alignment, so a query could be
scattered over an earlier unrelated part of the text (opus via "openrouter",
astra via "radius radius/gpt") and the real match ranked last. It now also
scores every contiguous occurrence and keeps the best alignment.
/resume matched one concatenated id/name/messages/cwd string. Scattered
matches in megabytes of message text or in UUIDs were noise, and the
position penalty buried real hits deep in a transcript. Fields are now
matched separately: name and cwd fuzzy, id and messages exact only, with no
position penalty. Ranking is name text, then id/message/cwd text, then
scattered name/cwd matches. Lowercased message text is cached per session.
closes#11220
Knowing how annoying re-logins in corporate environments can be, I think
we can open the browser and copy the code to the clipboard (what the user
asks for) without forcing it upon users (which I assume was the reason
it was removed in 8f0e9251b9).
This change adds optional browser opening and code copying during
device-code login after an additional confirmation (usually Enter).
It should work for all providers, with an optional opt-out controlled
by the provider author, not user settings.
Fixes#9282.
Replace recursive tree walks in the export template (sortChildren, mapNodes,
markActive) with iterative traversals, and build getPath with push + reverse.
closes#11225
* feat(coding-agent): add messageId and timestamp to markdown transformer context
* fix(coding-agent): update compaction render test for messageMeta argument
---------
Co-authored-by: Petr Houška <houskape@gmail.com>
Render the leading system message as the system prompt and tool list,
and later system messages as named section and tool updates. The header
prompt/tools from agent state remain as a fallback for sessions without
system entries. CLI --export now shows the prompt and tools too (#3464).
closes#11261
Reduce the race where killing a foreground child wakes its shell before the shell is signalled. Keep Linux and Windows termination unchanged and preserve kill fallbacks when stopping fails.
closes#11252
Updates of pi.dev installer installs run npm ci against a release
lockfile that pins every package, so npm never resolves versions and a
configured min-release-age does not apply. The --min-release-age=0 flag
had no effect, but security scanners that block it stopped the update.
Global npm, pnpm and bun self-updates keep their age-gate overrides.
closes#11262
Use authoritative OpenRouter billing for Chat Completions and Anthropic Messages while retaining catalog component estimates and fallback behavior.
Fixes#9980
Add Usage.cost.totalFromProvider to record whether cost.total is the
billed cost reported by the provider or an estimate from catalog rates.
Catalog-derived totals set it to false; a missing value also means
false. combineUsage marks a sum as provider-reported only when both
parts are.
Jev (TypeSafe, Workers AI), Clef (Workers AI), and OpenRouter decision
models now accept ClassifierContext.images. Each service takes its own
wire form: TypeSafe assets with the opt-in header, Clef images data URLs,
or OpenRouter image_url parts in the state. A new SystemOneCompat
(imageInput, sendImageOptInHeader) selects the form; catalog entries set
it explicitly and models.json provider compat now applies to classifiers.
Adds Clef Omni and Jev 1.14 on Workers AI and fixes Clef Flash and
Workers AI Jev catalog pricing.
Pre-prompt recovery of a recoverable length stop omitted the assistant
message but not the tool results that answered its calls, because only
the end-of-run caller passed them. The orphaned results were persisted
and providers rejected every later request.
_omitRecoveryAttempt now finds the matching tool results in the
projected context itself, so every caller omits the pair together.
closes#11227
The built-in grep tool spawned rg with the inherited environment, so
RIPGREP_CONFIG_PATH (e.g. a config containing --fixed-strings) silently
changed tool semantics: literal: false searches became literal and the
agent got incomplete results with no error.
Pass --no-config so the tool contract is deterministic. Users who want
custom rg behavior can use the bash tool or wrap grep in an extension.
closes#11203
Resume and /tree restored exactly the tools the branch recorded, so extension
tools registered later stayed inactive. Registered extension tools that the
branch never added or removed are now activated unless they use
defaultActive: false. The whole branch is searched, so tools removed before a
compaction stay inactive. Also fixes the /tree case from #11075.
closes#11062
- ClientAttribution is { name, url, categories? } with required name and url, so
OpenRouter always gets an HTTP-Referer. identity.ts maps the fields to each
provider's headers; NVIDIA gets the name with its first letter upper-cased.
attribution: null turns it off. PI_ATTRIBUTION is pi's, including the
cli-agent category; agent-core, durable, and the coding agent use it.
- Categories are a string array, joined for OpenRouter.
- withClientIdentity() is a typed wrapper instead of a Proxy and keeps a
MutableModels mutable. Durable no longer caches wrappers in a WeakMap.
- The Codex originator stays pi; login agentName no longer follows attribution.
- Models and the coding agent's ModelRuntime add x-opencode-session for custom
providers pointing at OpenCode, replacing the coding agent's transformHeaders.
pi-ai gets a ClientIdentity request option and createModels() default that choose the User-Agent (detailed with version, short, or custom) and provider attribution headers for OpenRouter, NVIDIA NIM, and OpenCode. Attribution is off by default in pi-ai and on by default in pi-agent-core and pi-durable (HarnessOptions.identity). pi-coding-agent sets its identity from the telemetry setting instead of adding headers itself.
models.dev deprecated several Baseten, GitHub Copilot, and Together models,
which broke type checks and the default-model test.
- Default GitHub Copilot model: gpt-5.4 -> gpt-6.1-sol
- Move Copilot live tests to gpt-6-luna/gpt-6-sol
- Remove tests and generator entries for retired models, including the
Together reasoning-only model list
Extensions importing the public /models subpath (e.g. clampThinkingLevel)
failed with "Cannot find module" because the loader aliased/virtualized
only the pi-ai root, /compat, /oauth, and /providers/all entrypoints.
Add /models to the jiti aliases and the embedded virtual module map,
plus a regression test importing it without a local pi-ai install.
Closes#11156
Co-authored-by: Dante-dan <dantedan@users.noreply.github.com>
Scripts wait in arrival order for a free worker instead of failing
immediately. The wait counts toward timeout_ms, honours abort, and is
capped at 60 seconds. PI_CODEMODE_MAX_WORKERS raises the process-wide
limit of two workers for hosts running many sessions in one process.
closes#11184
A second select/confirm/input/editor dialog or inline custom() component
replaced the visible one and left its promise pending forever. Dialogs in
the editor slot now form a stack: closing the visible dialog shows the
previous one again, and dialogs opened from inside a custom component work.
closes#11166
Windows PowerShell 5.1 adds a BOM when it rewrites managed-install.json, which made pi update fail with "Managed install marker is missing or invalid".
Node's existsSync() can reject runnable Store aliases because its extra
Windows-only stat check fails with EACCES (nodejs/node#36790). Use
access(F_OK) for shell validation on all platforms instead, matching the
check harness-v2's async refactor settled on (617d8b317, now pathExists
in packages/durable/src/env/node.ts). On Unix this is a no-op: existsSync
is already access(F_OK) there, so shell search order and behavior stay
unchanged; on Windows runnable aliases now pass validation.
* docs(ai,coding-agent): generate models.json reference from schemas
Add npm run generate:references, which renders docs/models-configuration.md
from the models.json TypeBox schemas, and describe provider and model fields
in those schemas. Overrides get their own descriptions without defaults, and
compat sections cover the Responses API aliases.
closes#10790
* Modify changelog
* docs(ai,coding-agent): use shared thinkingLevelMap and promptCache schemas
Replace the per-use schema helpers with fixed schemas whose descriptions
hold for both models and modelOverrides entries.
* feat(coding-agent): default NVIDIA to Nemotron 3.5 Super VL
Co-authored-by: prademacher-nvidia <235594174+prademacher-nvidia@users.noreply.github.com>
* docs(coding-agent): changelog for NVIDIA default model change
* fix(ai): run NVIDIA E2E tests against Nemotron 3.5 Super VL
---------
Co-authored-by: prademacher-nvidia <235594174+prademacher-nvidia@users.noreply.github.com>
Compaction summaries were limited to 0.8 * compaction.reserveTokens (13107 by default), turn-prefix summaries to 0.5 * reserveTokens, and branch summaries to a hardcoded 4096. On providers where reasoning shares the output limit (OpenAI Responses, adaptive Anthropic), high thinking levels used most of that limit and compaction failed with "generation hit the token cap", even though the model allows far more output.
Tying the limit to reserveTokens assumed the summary request is as large as the full context, so its output had to fit in the reserved space. It is usually much smaller: recent messages kept by keepRecentTokens are not sent, a split turn goes to a separate request, tool results are truncated, and tool definitions and the normal system prompt are not included. Manual compaction can also run long before the context is full. The provider layer already sizes output from the actual request, using the model's output limit reduced to fit the remaining context, as for normal turns.
Summary requests now set no maxTokens and rely on that. compaction.reserveTokens only controls when compaction starts.
generateSummary() and generateSummaryWithUsage() now ignore the reserveTokens parameter.
closes#9512, closes#9075, closes#10908
done() from ctx.ui.custom({ overlay: true }) closed the overlay with
ui.hideOverlay(), which removes the topmost overlay instead of the one
that called done(). With a shell overlay open under a dialog overlay
from another extension, the shell's exit removed the dialog: the
finished shell overlay stayed on screen ignoring input and the dialog's
promise never resolved. Hide the overlay through its own handle.
closes#10648
* fix(coding-agent): resolve model references through one provider selection policy
Model references from --model, --models/enabledModels, /model, and auth credential printing now share one resolver. It collects every candidate before choosing a provider, so catalog order never decides, a :<thinking> suffix cannot change the provider, and an ambiguous exact match no longer falls through to a fuzzy match.
provider/id still prefers the named provider's exact or fuzzy match. A gateway exposing provider/id as a raw model id is used when the named provider has no match, or lacks credentials while the gateway has them. Several gateways without a unique authenticated one are reported as ambiguous.
fixes#10160
* docs(coding-agent): shorten model selection notes in CLI reference
* docs(coding-agent): condense #10160 changelog entry
* fix(coding-agent): move model reference resolution into model-resolver
* fix(coding-agent): warn when a model scope pattern matches several providers
* docs(coding-agent): trim model resolver comments to the reasons
* fix(coding-agent): build custom model ids from the resolver's not-found target
The SDK always passed initial tools, so the constructor never restored the
loadout recorded in the transcript, and resumed sessions dropped tools activated
during the session. Sessions that use the default tools now restore the recorded
loadout, with --tools +name/-name entries applied to it.
fixes#10785
Sends copied text to the terminal with OSC 52 after the local clipboard
write, as over SSH, for remote clients without SSH variables such as
multiplexer attaches and remote IDE daemons.
closes#10826, closes#10835, closes#10114
A just-removed auth.json.lock directory can stay delete-pending on Windows
while another process holds a handle, making mkdir fail with EPERM. Retry
this briefly (capped separately from ELOCKED) so real permission errors
still fail fast.
fixes#10801
Print mode now writes a warning to stderr and exits 1 when the final
response stopped at the model's output token limit. The partial text
is still written to stdout.
fixes#10799
The codemode row shows "Elapsed" while the script runs and "Took" once
it finishes, like bash rows. The timer logic moves from the bash renderer
to render-utils, and scripts send an initial update so the timer starts
before the first nested call.
closes#10708
MCP 2026-07-28 allows structuredContent to be any JSON value, including
arrays and null. callTool() rejected non-object values, failing the whole
tool call. CallToolResult.structuredContent is now unknown, and MCP tools
without an output schema declare structuredContent as unknown to codemode.
refs #10416
