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fix(coding-agent): preserve usage in streaming events - #7982

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christianklotz merged 1 commit into
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issues/7911
Aug 12, 2026
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fix(coding-agent): preserve usage in streaming events#7982
christianklotz merged 1 commit into
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issues/7911

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@christianklotz christianklotz commented Aug 11, 2026

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Summary

  • preserve cumulative provider usage on JSON and RPC message_update events
  • keep cumulative message snapshots omitted so stream size remains linear
  • document the wire shape and add a regression test

Testing

  • npm run build
  • npm run check
  • ./test.sh

Closes #7911

@christianklotz
christianklotz merged commit c93ea6c into main Aug 12, 2026
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christianklotz deleted the issues/7911 branch August 12, 2026 21:32
dadezzz pushed a commit to dadezzz/forgejo-agent that referenced this pull request Aug 19, 2026
Renovate [bot] Forgejo
fix(deps): update dependency @earendil-works/pi-coding-agent to v0.84…
6e164b4 
….2 (#213)

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@earendil-works/pi-coding-agent](https://github.com/earendil-works/pi) ([source](https://github.com/earendil-works/pi/tree/HEAD/packages/coding-agent)) | [`0.84.1` → `0.84.2`](https://renovatebot.com/diffs/npm/@earendil-works%2fpi-coding-agent/0.84.1/0.84.2) | ![age](https://developer.mend.io/api/mc/badges/age/npm/@earendil-works%2fpi-coding-agent/0.84.2?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@earendil-works%2fpi-coding-agent/0.84.1/0.84.2?slim=true) |

---

### Release Notes

<details>
<summary>earendil-works/pi (@&#8203;earendil-works/pi-coding-agent)</summary>

### [`v0.84.2`](https://github.com/earendil-works/pi/blob/HEAD/packages/coding-agent/CHANGELOG.md#0842---2026-08-14)

[Compare Source](earendil-works/pi@v0.84.1...v0.84.2)

##### New Features

- **Fullscreen transcript search** — Search and navigate matches in fullscreen mode. See [TUI Fullscreen Viewport](docs/keybindings.md#tui-fullscreen-viewport).
- **Configurable default tools** — Choose startup built-in tools globally or per project. See [Tools](docs/settings.md#tools).
- **Configurable fullscreen exit output** — Print the transcript or only a resume hint on exit. See [Interactive Mode](docs/usage.md#interactive-mode).

##### Added

- Added fullscreen transcript search with `Ctrl+Shift+F`, incremental match highlighting, configurable search match theme colors, and next/previous navigation with `Enter`/`Ctrl+G` and `Shift+Enter`/`Ctrl+Shift+G`.
- Added experimental strict JSON-schema constrained sampling for the default `read`, `bash`, `edit`, and `write` tools under `PI_EXPERIMENTAL=1`.
- Added a fullscreen exit output setting to choose between printing the final transcript and only a session resume hint.
- Added the `defaultTools` setting for configuring the initial built-in tool selection globally or per project.
- Added `--use-theme <name[/name]>` to choose an initial per-run interactive theme without changing saved settings ([#&#8203;7722](earendil-works/pi#7722) by [@&#8203;rwachtler](https://github.com/rwachtler)).
- Added `expandPromptTemplates` to extension `pi.sendUserMessage()` options for explicitly dispatching commands and expanding skills and prompt templates. See [`pi.sendUserMessage()`](docs/extensions.md#pisendusermessagecontent-options) ([#&#8203;7857](earendil-works/pi#7857) by [@&#8203;mrexodia](https://github.com/mrexodia)).
- Added inherited `createGatewayBindingFetch()` for routing Cloudflare AI Gateway requests through a Workers AI binding without an API token ([#&#8203;7901](earendil-works/pi#7901) by [@&#8203;Maximo-Guk](https://github.com/Maximo-Guk)).
- Added inherited `AssistantMessage.endTurn` to preserve OpenAI Codex's terminal `end_turn` signal for diagnostics ([#&#8203;7766](earendil-works/pi#7766)).
- Added inherited unbound single-line transcript scrolling actions for fullscreen mode. See [TUI Fullscreen Viewport](docs/keybindings.md#tui-fullscreen-viewport) ([#&#8203;7903](earendil-works/pi#7903) by [@&#8203;midastruth](https://github.com/midastruth)).

##### Changed

- Changed inherited Kimi Coding requests to use pi's runtime `User-Agent` header.
- Replaced the inherited Mistral SDK transport with a native Chat Completions HTTP stream, eliminating its generated client and schema runtime overhead.
- Documented the generic `AI_AGENT=pi` process marker and how it differs from `PI_CODING_AGENT=true` ([#&#8203;7747](earendil-works/pi#7747)).
- Changed inherited OpenAI Responses deferred tool loading to prefer message-anchored `additional_tools` where supported while retaining tool-search and top-level fallbacks ([#&#8203;7709](earendil-works/pi#7709)).
- Reduced inherited fullscreen rendering allocation churn by painting full-width layout rows directly instead of recompositing them on every frame.

##### Fixed

- Fixed root Markdown files such as `README.md` and `AGENTS.md` in skill directories being reported as broken skills unless they declare valid skill frontmatter ([#&#8203;7805](earendil-works/pi#7805)).
- Fixed single-object `edit` tool inputs failing validation by accepting them as one-edit arrays in both coding-agent and harness edit tools ([#&#8203;7835](earendil-works/pi#7835)).
- Fixed managed-tool downloads delaying TUI startup and hiding diagnostics in fullscreen mode by mounting the TUI first and showing download progress and warnings inside it.
- Fixed opening a model selector immediately after startup cancelling and restarting the in-progress model catalog refresh.
- Fixed inherited GitHub Copilot login triggering API rate limits while enabling model policies by limiting concurrent policy updates ([#&#8203;6187](earendil-works/pi#6187)).
- Fixed fullscreen transcript search snapping back to the current match during manual scrolling and fragmented mouse input leaking into the search query.
- Fixed inherited required LaTeX arguments starting on a new line being parsed as empty ([#&#8203;7760](earendil-works/pi#7760)).
- Updated the transitive `nanoid` development dependency to address a denial-of-service vulnerability.
- Fixed fallback rendering for extension tool results to collapse long output and honor tool expansion ([#&#8203;7979](earendil-works/pi#7979)).
- Fixed JSON and RPC `message_update` events dropping cumulative usage during streaming. See [JSON Event Mode](docs/json.md) and [RPC `message_update`](docs/rpc.md#message_update-streaming) ([#&#8203;7982](earendil-works/pi#7982) by [@&#8203;christianklotz](https://github.com/christianklotz)).
- Fixed `pi.sendMessage(..., { triggerTurn: false })` steering an active run instead of only recording the custom message ([#&#8203;8022](earendil-works/pi#8022) by [@&#8203;cristinaponcela](https://github.com/cristinaponcela)).
- Fixed the `defaultTools` setting dropping extension and SDK custom tools when selecting built-in defaults.
- Fixed the subagent example rejecting YAML array syntax for the `tools` frontmatter field ([#&#8203;7598](earendil-works/pi#7598) by [@&#8203;alexsavio](https://github.com/alexsavio)).
- Fixed the subagent example dropping parent session model, thinking, and tool configuration ([#&#8203;7897](earendil-works/pi#7897) by [@&#8203;virtuald](https://github.com/virtuald)).
- Fixed custom system prompts concatenating the current working directory with later appended prompt content ([#&#8203;7887](earendil-works/pi#7887) by [@&#8203;distributedlock](https://github.com/distributedlock)).
- Fixed inherited OpenAI Responses function and custom tool calls losing namespaces during streaming, proxying, and replay ([#&#8203;7709](earendil-works/pi#7709)).
- Fixed inherited upstream request buffer failures not triggering automatic assistant retries.
- Fixed inherited built-in and custom DeepSeek API models sending output limits through an unsupported field.
- Fixed inherited Amazon Bedrock replay rejecting tool arguments that contain empty object keys while preserving all valid nested values ([#&#8203;7882](earendil-works/pi#7882) by [@&#8203;muyiyr](https://github.com/muyiyr)).
- Fixed inherited DeepSeek compatibility detection for base URLs whose hostname contains uppercase letters ([#&#8203;7933](earendil-works/pi#7933) by [@&#8203;yearth](https://github.com/yearth)).
- Fixed inherited Google Generative AI and Vertex AI responses with tool calls incorrectly treating output-limit or provider-error stops as normal tool use ([#&#8203;8059](earendil-works/pi#8059)).
- Fixed inherited fullscreen mouse drag selection and OSC 8 link activation in terminals that report generic SGR mouse release button codes ([#&#8203;7963](earendil-works/pi#7963)).
- Fixed inherited focused fullscreen overlays not receiving mouse wheel or viewport scroll keys such as PageUp and PageDown ([#&#8203;7894](earendil-works/pi#7894)).
- Fixed inherited LaTeX control spaces split across line endings causing complete expressions to fall back to raw source.
- Fixed split `Alt+Enter` input over SSH being misread as Escape, added `PI_TUI_ESC_TIMEOUT` for high-latency terminals, and limited that timeout to lone Escape input ([#&#8203;7899](earendil-works/pi#7899) by [@&#8203;powerfooI](https://github.com/powerfooI)).
- Fixed inherited idle fullscreen sessions repainting and clearing text selection when the terminal loses focus ([#&#8203;7892](earendil-works/pi#7892) by [@&#8203;terrorobe](https://github.com/terrorobe)).
- Fixed fullscreen selection copy to use the host clipboard and report failure instead of claiming success when OSC 52 is unsupported ([#&#8203;8110](earendil-works/pi#8110) by [@&#8203;Panoplos](https://github.com/Panoplos)).

</details>

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<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0NC4zMS4wIiwidXBkYXRlZEluVmVyIjoiNDQuMzEuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->
daawa pushed a commit to daawa/pi-mono that referenced this pull request Aug 20, 2026
@AlfieRc
Merge branch 'main2' into alfie_doc
fe9a489 
* main2: (892 commits)
  docs(coding-agent): clarify Windows paths in settings
  fix(coding-agent): share concurrent model catalog refreshes
  docs(coding-agent): document model catalog refresh
  fix(coding-agent): preserve usage in streaming events (earendil-works#7982)
  feat(coding-agent): add per-run theme selection (earendil-works#7722)
  fix(coding-agent): preserve extension tools with defaults
  feat(coding-agent): add configurable default tools
  fix: trigger turn false should not start turn (earendil-works#8022)
  chore(docs): fix ascii alignment in compaction docs
  fix(tui): give focused fullscreen overlays wheel and viewport keys
  fix(tui): handle LaTeX control spaces across line endings
  docs: document terminal-specific fullscreen mouse behavior (earendil-works#7965)
  docs(agent): add table of contents
  docs(agent): consolidate harness spec into harness.md
  docs(agent): restructure build order into parallel storage and runtime tracks
  docs(agent): make search a standalone service, open metadata-filter question
  docs(agent): specify optional pull-based search service
  docs(agent): add seq-ranged usage ledger scan
  docs(agent): one sqlite file per session, search becomes external
  fix(ai): bound Copilot policy update concurrency
  ...
@scottames-github-bot scottames-github-bot Bot mentioned this pull request Aug 21, 2026
Merged
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jinhuang712 pushed a commit to jinhuang712/pi that referenced this pull request Sep 11, 2026
@christianklotz
fix(coding-agent): preserve usage in streaming events (earendil-works…
744b603 
…#7982)

Fixes earendil-works#7911
oskarfreye pushed a commit to draht-dev/draht that referenced this pull request Oct 1, 2026
@christianklotz @oskarfreye
fix(coding-agent): preserve usage in streaming events (earendil-works…
2396edd 
…/pi#7982)

Fixes earendil-works/pi#7911
qaworkfree pushed a commit to qaworkfree/pipipiPopopo that referenced this pull request Oct 8, 2026
@christianklotz
fix(coding-agent): preserve usage in streaming events (earendil-works…
50f2b36 
…#7982)

Fixes earendil-works#7911
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0.84.0's delta-only message_update removed usage, hence no mid-run usage on the wire protocol

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