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fix: html_render pages show inline when OpenCode or ACP agents wrap the call - #17031

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ehfreema:fix/execute-html-render-inline
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pingdotgg:mainfrom
ehfreema:fix/execute-html-render-inline

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@ehfreema ehfreema commented Oct 8, 2026 •

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Problem

T3's inline-page lookup only recognized tool items named html_render, so a page published through a wrapping tool never rendered and was orphaned on thread delete. The model is still told "Shown to the reader above your reply".

  • OpenCode 2: Code Mode runs T3 tools inside one execute call, so the item is named execute even when its output is exactly html_render's result.
  • ACP agents: the call is reported, but in envelopes the reader can't open: Devin's ACP content array, CodeBuddy's bare text block plus generic wrapper names, and Grok's OkayOutput envelope with annotated titles.

Change

Shared reader (packages/shared/src/toolOutput.ts, t3McpToolPresentation.ts):

  • htmlRenderFromToolItem also accepts a completed execute item whose script returned html_render's result, either whole or as the bare reference (return out.htmlRender). A bare reference only counts when its id has the -html suffix that html_render gives every page.
  • The array branch unwraps block.content as well as block.text, which is Devin's ACP shape.
  • The object branch parses a bare {type:'text',text} block, which is CodeBuddy's shape.

ACP adapter boundary (packages/provider-acp):

  • acpMcpToolCallOutput unwraps Grok's {output:{OkayOutput}}, including on the default path when identity recovery fails.
  • Identity recovery accepts namespaced meta/rawInput names, plus Grok's snake_case keys and source-file annotations, so these calls become T3 tool rows.

Thread ownership. An execute item's output is whatever the agent's script returned, so a reference read from it is only shown when its attachment id was minted for the row's own thread (attachmentIdBelongsToThread, new in @t3tools/shared/attachmentIds). Web and mobile pass each row's sourceThreadId, so delegated and inherited rows are checked against the thread they came from. Thread-deletion cleanup checks the same thread, as before. The segment helper moved from the server to shared so the clients can use it; the server re-exports it unchanged.

Not covered: an OpenCode Code Mode script that never returns the html_render result (for example, it returns the html_preview result instead) still shows no page. OpenCode reports nested calls as { tool, status, input } with no result, so nothing in the item names the page. That needs a server-side record of published pages and is a separate change.

Scope and approval

Part of https://git.cafe/pingdotgg/t3code/issues/16745; it doesn't close it, because the case above remains open there. A maintainer confirmed the root cause against main in the issue. Every change here serves one problem: a page that a wrapping tool's output carries must be found. The ownership check follows Julius's interim direction in the issue, which asked for it explicitly. This PR was narrowed after coordinating with @Abdullah1738 on https://git.cafe/pingdotgg/t3code/pulls/19029, and an earlier OpenCode adapter change was reverted out of it (ae99a51).

Verification

  • Ownership tests (new): each fails with the check removed and passes with it.
    • Web session-logic: an execute row shows its own thread's page, keeps a foreign page as a work row, and checks a delegated child's row against the child.
    • Mobile threadActivity: the same for local and inherited rows.
    • Shared htmlRender: rejects another thread's page, a thread whose segment is only a prefix, and a call with no thread.
  • New shared tests:
    • htmlRender reads an execute output, a bare reference (ignoring an id without the -html suffix), the ACP registry content envelope, and a bare MCP text block, and keeps the established text envelopes working.
    • t3McpToolPresentation guards the namespaced and snake_case names.
  • New ACP tests:
    • acpMcpToolCallOutput unwraps codex-acp result/content envelopes and Grok's OkayOutput.
    • Identity recovery handles CodeBuddy rawInput.toolName, Devin namespaced meta, and Grok snake_case keys and annotated titles, and ignores Grok's file-passed source annotation.
  • Test runs: toolOutput, htmlRender, t3McpToolPresentation, runtimeModel, AcpAdapterV2, attachmentStore, web session-logic and mobile threadActivity pass (238 tests at 79d5986). The attachmentStore suite covers thread-deletion cleanup through the same lookup.
  • Static checks: typecheck of shared, provider-acp, apps/server, apps/web and apps/mobile is clean; lint and knip:check are clean. vp run check:changed passes format, lint and knip. Its full test run has 13 failures in 11 files this PR doesn't touch (macOS /private/var path prefixes, Linux-only desktop handlers, Android Java, Playwright); for example Antigravity's file-confinement test fails on /var/folders/... paths.
  • Independent reports in https://git.cafe/pingdotgg/t3code/issues/16745 that match these shapes:
    • octanethegenio replayed saved Devin results (nightly 20261014.3118). Unwrapping the ACP content layer extracts the page; the current main reader doesn't.
    • 0pilatos0 reproduced on nightly 20261015.3158 with OpenCode 2.0.29: 8 completed execute items, in a normal thread and a delegate_task child, hold a valid htmlRender reference and none render.
  • In-app: a page published through execute rendering inline in a dev thread. Before the fix there was only a folded execute work row.
Weekly activity chart rendering inline in T3 Code from an execute tool call

Not checked live: Devin, CodeBuddy and Grok sessions. Their envelopes are covered by unit tests built from the shapes reported in https://git.cafe/pingdotgg/t3code/issues/16745.

Model: Muse Spark 1.3 (earlier commits) and Claude Opus 5.5. Harness: T3 Code, through OpenCode and Claude Code.

Takeover

Round 2 retains @ehfreema’s commits and rebuilds the final tree from the round-1 takeover plus main at 977a188. This section supersedes the earlier verification counts above.
Qualified ACP tool names prevent ToolSearch arguments from being mistaken for html_render; native child MCP output now receives the same Grok envelope normalization as parent output. Both regressions failed before their respective fixes and passed afterward.
Julius decided wrapped execute output is fully trusted; the existing source-thread ownership check remains. Part of #16745, without closing it.
The final diff has 10 added tests across 6 existing files (original submission: 13 across 7), plus the nested-output assertion in the existing child adapter replay.

Evidence

Fixture matrix · Complete capture manifest · Proof audit: INSUFFICIENT.

Real OpenCode Code Mode calls published identical HTML before and after. After reload the page renders inline; the before revision retains only the execute row. Live insertion without reload was not independently established. These are whole-viewport settled captures.

Viewport / theme Before After
1440 light Before: 1440 light After: 1440 light
1440 dark Before: 1440 dark After: 1440 dark
390 light Before: 390 light After: 390 light
390 dark Before: 390 dark After: 390 dark

Before interaction recording · After interaction recording, captured with ffmpeg x11grab. The auditor sampled recordings; complete recording acceptance remains unproven.

Surface / proof Result
Real OpenCode execute Eight before/after frames; persisted provider rows and identical HTML corroborated.
Real ACP provider Unverified: Grok advertises grok.com auth while the configured adapter requests xai.api_key. No successful real ACP html_render capture.
Guest serving Unverified: both revisions require an unavailable Connect tunnel.
Attachment lifecycle SQL-backed collection and after deletion preserve foreign attachments; before deletion and MCP App controls remain incomplete. See manifest for replay provenance.
Native mobile Emulator executable absent; threadActivity unit tests pass (41). Native UI unverified.
Verification log
  • Round-2 source reviewed: 34fcb08, based on main 977a188. Publication preserves the contributor history through merges; the final tree is checked against the reviewed tree.

  • Both concrete regressions failed before their implementation fixes and passed afterward: before/after transcript.

  • Fresh full-diff reviews: Codex gpt-6.1-sol report A, 169 focused tests; Claude Opus 5.5 report B, 233 focused tests. Both returned MERGE, with live-provider and visual verification left to the evidence pass.

  • vp run check:changed, capped at 20 minutes, finished in under five minutes: format, lint, GraphQL generation, both knip stages, unused patches and all 34 affected-package typechecks passed. Tests: 313 passed, one existing 16-MiB ACP terminal-output test timed out under the concurrent run. That same unchanged test passed alone. No timeout/retry configuration was changed. Full check log, isolated test log.

  • Surface scope: web and desktop share the timeline consumer; mobile has separate threadActivity coverage; guest rendering and deletion consume the same shared page reader. No new controls, commands, wire contracts or entry points. Real ACP variants not emitted by the capture provider remain mock-replay coverage. Native desktop shell, relay/tunnel and live nested Grok-child behavior are not established by web-parent proof.

  • Infrastructure: the first implementation delegate completed its edits/tests but its completion notification was delayed; its background broad check was killed without a usable log. The assigned worktree and server later disappeared before capture; the reviewed commit survived and the worktree was recreated. One ghdrop transport failure succeeded on retry. No live T3 userdata was read, copied or written.

  • Final published head: cc71861; its tree exactly matches reviewed 34fcb08. Original contributor head, main and reviewed takeover are ancestors. Julius is assigned. GitCafe observed this final head with five successful checks, four pending and zero failing; the new-head conflict check was pending at handback. No merge or watch was requested.

  • Capture-focused tests: before 223 passed; after 192 plus mobile 41 plus server 78 passed. Proof audit is INSUFFICIENT for the explicit missing rows above; no code bug was established by that audit.

Models/harnesses: gpt-6.1-sol through Codex (lead, review A, proof audit and capture); Claude Opus 5.5 through Claude Agent (round-2 implementation and review B), coordinated in T3 Code. Original contribution credited to @ehfreema.

…ode execute

dynamic_tool items named execute now resolve an embedded htmlRender
reference, and result envelopes shaped like {content: {text}} parse.
@github-actions github-actions Bot added vouch:unvouched PR author is not yet trusted in the VOUCHED list. size:S 10-29 changed lines (additions + deletions). labels Oct 8, 2026
@ehfreema
ehfreema marked this pull request as ready for review October 8, 2026 02:10
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  • packages/shared/src/toolOutput.test.ts
  • packages/shared/src/toolOutput.ts
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  • packages/shared/src/toolOutput.test.ts
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Walkthrough

The ACP adapter and shared output reader handle additional MCP identity and output shapes. HTML render extraction accepts execute items, including outputs with an htmlRender reference in JSON text.

Changes: ACP MCP tool handling

Layer / File(s) Summary
Recognize MCP tool identities
packages/shared/src/t3McpToolPresentation.ts, packages/provider-acp/src/server/runtimeModel.ts, packages/shared/src/t3McpToolPresentation.test.ts, packages/provider-acp/src/server/runtimeModel.test.ts
Identity extraction reads additional metadata fields and normalizes candidate labels. Tests cover CodeBuddy, Devin, Grok, and snake_case inputs.
Normalize ACP tool outputs
packages/provider-acp/src/server/adapter.ts, apps/server/src/orchestration-v2/Adapters/AcpAdapterV2.test.ts
The adapter extracts Grok OkayOutput strings and applies output normalization to dynamic-tool items. Tests cover MCP envelopes, supported Grok values, and pass-through cases.
Parse output envelopes and extract HTML renders
packages/shared/src/toolOutput.ts, packages/shared/src/toolOutput.test.ts, packages/shared/src/htmlRender.test.ts
readResult reads array entries from text or content, unwraps nested text, and parses eligible text blocks within a separate budget. htmlRenderFromToolItem accepts execute items. Tests cover HTML render metadata in these output shapes.

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix · Severity of issue fixed: Medium

Merge Risk: Minimal · up to dcebc

The change makes pages published through execute render inline and recognizes more tool output shapes. No actionable merge-blocking risk remains in the supplied context.

Architecture risk: Low · up to c0222

The change affects 3 systems.

Changed systems: packages/shared, packages/provider-acp, apps/server

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

  • observed — packages/shared (library) was modified; 5 changed files map to changed impact.
  • observed — packages/provider-acp (library) was modified; 3 changed files map to changed impact.
  • observed — apps/server (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

  • observed — Modified behavior in packages/shared/src/htmlRender.test.ts: Adds a test with an execute tool output containing JSON text and expects htmlRenderFromToolItem to return its htmlRender reference.
  • observed — Modified behavior in apps/server/src/orchestration-v2/Adapters/AcpAdapterV2.test.ts: Imports acpMcpToolCallOutput for use in adapter tests.
  • observed — Modified behavior in apps/server/src/orchestration-v2/Adapters/AcpAdapterV2.test.ts: Adds tests asserting that MCP result envelopes yield their content or structured content, Grok OkayOutput strings are extracted, and non-string or absent OkayOutput values and plain objects pass through unchanged.
  • observed — Modified behavior in packages/provider-acp/src/server/adapter.ts: acpMcpToolCallOutput now returns a string from output.OkayOutput when the raw output has no result or error envelope and that field is a string; otherwise, it preserves the raw output. Existing MCP envelope handling remains.
Pre-merge checks: Passed 4
Check name Status Explanation
Linked Issues check Passed The changes meet the coding requirements in [#16745]. htmlRenderFromToolItem accepts completed execute items. The shared reader accepts JSON text, content blocks, and bare MCP text blocks. The A…
Out of Scope Changes check Passed The changes stay within [#16745]. The ACP unwrapping, identity recovery, label normalization, parser safeguards, and tests support recognition of the same htmlRender reference across the reported to…
Title check Passed The title is concise and accurately identifies the main fix: rendering html_render pages when OpenCode or ACP agents wrap the call.
Description check Passed The PR description follows the template's main sections (Problem, Change, Scope and approval, Verification) and gives substantive detail on each. The Problem section states the bug, the affected shape…
Full details: Linked Issues check

Explanation

The changes meet the coding requirements in [#16745]. htmlRenderFromToolItem accepts completed execute items. The shared reader accepts JSON text, content blocks, and bare MCP text blocks. The ACP adapter unwraps the reported output envelope before projection. The identity and label handling preserves the tool identity for the reported provider shapes. The existing cleanup path still receives the attachment ID from the shared reader, and focused tests cover these paths.

Full details: Out of Scope Changes check

Explanation

The changes stay within [#16745]. The ACP unwrapping, identity recovery, label normalization, parser safeguards, and tests support recognition of the same htmlRender reference across the reported tool envelopes. No unrelated product behavior is demonstrated.

Full details: Description check

Explanation

The PR description follows the template's main sections (Problem, Change, Scope and approval, Verification) and gives substantive detail on each. The Problem section states the bug, the affected shapes (OpenCode Code Mode execute items, Devin, CodeBuddy and Grok envelopes), and the expected behavior. The Change section lists the shared reader, ACP adapter, and thread-ownership changes. The Scope and approval section links issue #16745, names the maintainer direction, and explains the narrowing. The Verification section lists focused tests, static checks, independent reports, in-app screenshots, and what was not checked live. The description has gaps: the Scope section does not state the approval comment itself, the 'Takeover' and 'Evidence' sections are appended after the template and reference round 2 counts that conflict with the earlier Verification section, and several claims rely on external links the reviewer cannot confirm. The description also includes a 'Not covered' note that is useful but sits outside the template. Overall the description is mostly complete, so it passes.

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Note

Written by claude-opus-5-5 on behalf of Maria

Hi! We are cleaning up open PRs, and this one does not say which model or harness was used to create it. If this change is really important, we recommend rebuilding the PR with a newer model and noting the model and harness in the PR description.

@maria-rcks maria-rcks closed this Oct 11, 2026
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Note

Written by claude-opus-5-5 on behalf of Maria

Reopening, this was closed by mistake. Sorry for the noise!

@maria-rcks maria-rcks reopened this Oct 11, 2026
@juliusmarminge juliusmarminge added the macroscope-review Opt PRs made by unvouched contributors in for Macroscope review. Vouched contributors auto-reviews label Oct 11, 2026 — with ChatGPT Codex Connector
…lopes

Covers the CodeBuddy bare text block, Grok OkayOutput envelope and
annotated titles, and Devin/CodeBuddy namespaced identity, in addition
to the OpenCode execute wrapper and Devin content envelope.
@github-actions github-actions Bot removed the size:S 10-29 changed lines (additions + deletions). label Oct 11, 2026
@github-actions github-actions Bot added the size:M 30-99 changed lines (additions + deletions). label Oct 11, 2026
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Approvability

Verdict: Needs Human Approval

Macroscope's review found this PR requires human approval — This cross-cutting fix changes shared tool-output parsing and ACP normalization, then propagates wrapped HTML-render results through web, mobile, guest rendering, and attachment cleanup. It also adds a line-level oxlint suppression for a provider-specific string, which warrants direct review of the exception and its surrounding runtime behavior.

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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Inline comments:
Review comments at @packages/shared/src/toolOutput.ts:
- Around line 102-103: Update the text-recursion path in readResult so an
oversized optional text field does not set the shared budget to exceeded and
cause compactDynamicToolOutput to discard a valid outer threadId. Parse bare
text blocks without letting their size invalidate outer metadata, while
preserving the budget behavior for other result content.

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macroscopeapp Bot dismissed their stale review October 11, 2026 15:23

Dismissing prior approval to re-evaluate a0b4b88

@ehfreema
ehfreema force-pushed the fix/execute-html-render-inline branch from a0b4b88 to 292d345 Compare October 11, 2026 15:24
Comment thread packages/shared/src/toolOutput.ts Outdated
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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @packages/shared/src/toolOutput.ts:
- Around line 112-113: Update the text-block handling in readResult so parsing
JSON from value.text retains recognized metadata from the outer object, such as
threadId, when returning the nested result. Add a test for a type "text" object
with threadId and text containing "{}" to verify compactDynamicToolOutput
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Dismissing prior approval to re-evaluate dcebc1c

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saphid commented Oct 23, 2026

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Source review of 0e2e4e6: the new execute reader accepts a returned htmlRender reference (or a bare -html reference), but the web timeline and mobile feed pass it through without checking the attachment's thread segment against the item's source thread. The server cleanup path does check ownership; that protects deletion, but does not prevent mounting a known page reference from another thread. This is a source finding; I have not independently run the cross-thread scenario.

Please bind accepted display references to the item's actual source thread, including delegated/merged timeline rows, and add focused foreign-reference coverage for web and mobile. Julius's interim direction in #16745 explicitly called for the ownership check.

The documented case where a script publishes a page but never returns its reference also remains outside this reader, so please preserve that outstanding case in #16745 rather than treating this interim subset as complete closure. For verification, the current PR has an after screenshot; exact-base/head before/after client proof and live ACP coverage remain pending. #21680 overlaps the Grok parsing work and is worth coordinating with.

…e row's thread

An execute item's output is whatever the agent's script returned, so a
reference read from it could name a page published for another thread.
htmlRenderFromToolItem now takes the item's thread and accepts an
execute reference only when its attachment id was minted for that
thread. Web and mobile pass each row's source thread, so delegated and
inherited rows are checked against the thread they came from, and
thread-deletion cleanup passes the thread being deleted.

The thread-segment helper moves to @t3tools/shared/attachmentIds so the
clients can use it; the server re-exports it unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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macroscopeapp Bot dismissed their stale review October 23, 2026 12:17

Dismissing prior approval to re-evaluate 79d5986

@github-actions github-actions Bot added size:L 100-499 changed lines (additions + deletions). and removed size:M 30-99 changed lines (additions + deletions). labels Oct 23, 2026
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Note

Written by Claude Opus 5.5 (Claude Code in T3 Code) on behalf of @ethanhfreeman.

Thanks, the ownership finding was right, and it was the check Julius asked for. Fixed in 79d5986:

  • Ownership. htmlRenderFromToolItem now takes the item's thread and accepts an execute reference only when its attachment id was minted for that thread (attachmentIdBelongsToThread in the new @t3tools/shared/attachmentIds). A reference with no thread is rejected, and so is one whose thread segment is only a prefix of another thread's.
  • Delegated and inherited rows. Web (session-logic) and mobile (threadActivity) pass each row's sourceThreadId, so a delegated or inherited row is checked against the thread it came from, not the one showing it. Thread-deletion cleanup passes the thread being deleted, as before.
  • Coverage. New foreign-reference tests in web session-logic.test.ts, mobile threadActivity.test.ts and shared htmlRender.test.ts. All three fail with the check removed and pass with it.
  • [Bug]: html_render pages never show for OpenCode 2 threads because Code Mode wraps the call in execute #16745 stays open. The PR no longer closes it. The description keeps the published-but-never-returned case open there.

Not done yet: exact base/head before-and-after client captures, and live ACP sessions. I'll note #21680 separately.

@saphid

saphid commented Oct 23, 2026

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Thanks for adding the source-thread check and inherited-row coverage. The ordinary foreign-reference case is corrected in source, and keeping #16745 open accurately preserves the no-return case.

One remaining source-level collision: stableThreadId in OrchestratorMcpService.ts constructs thread:mcp:<namespace>:<requestKey>:<index>. With 36-character namespace and key values, the IDs are 86 characters long; children :0 and :1 have the same first 80 normalized characters. toSafeThreadAttachmentSegment truncates there, and both attachment creation and attachmentIdBelongsToThread use that segment. A known attachment reference from one child can therefore satisfy the other child's display check (and cleanup's segment comparison). The UUID suffix does not establish which of those two threads owns it.

Concrete pair: thread:mcp: + a.repeat(36) + : + b.repeat(36) + :0 versus the same prefix ending :1. Please cover colliding long IDs and use ownership that remains distinct, considering existing attachment compatibility. The relevant exact-head locations are ID construction and attachment check.

This is source inspection and a string-normalization calculation, not an executed client reproduction. Exact-base/head client captures and live ACP validation remain pending.

…er-inline

# Conflicts:
#	apps/mobile/src/lib/threadActivity.test.ts
@juliusmarminge juliusmarminge added takeover t3 automation: takeover pr:in-progress A lead is working on this PR labels Oct 26, 2026
@juliusmarminge juliusmarminge self-assigned this Oct 26, 2026

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Taking over this one

juliusmarminge and others added 2 commits October 26, 2026 18:54
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
…nline

OpenCode Code Mode runs html_render inside `execute`, so the page reference
came back as the script's result (wrapped or bare) and never rendered.
`execute` rows now yield a page only when its attachment id was minted for
the row's own thread (sourceThreadId, so inherited and delegated rows check
their origin), and thread deletion cleans those pages up too.

ACP envelopes now normalize: Devin content arrays, CodeBuddy bare text
blocks and qualified rawInput.toolName, Devin's namespaced inference tool
name, and Grok's OkayOutput result plus snake_case and annotated names.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@juliusmarminge juliusmarminge added pr:needs-julius Needs Julius: route gate, unverifiable surface, or blocked pr:in-progress A lead is working on this PR and removed pr:in-progress A lead is working on this PR pr:needs-julius Needs Julius: route gate, unverifiable surface, or blocked labels Oct 26, 2026
@juliusmarminge juliusmarminge added pr:gate-failed A land gate failed and removed pr:in-progress A lead is working on this PR labels Oct 27, 2026

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macroscope-review Opt PRs made by unvouched contributors in for Macroscope review. Vouched contributors auto-reviews pr:gate-failed A land gate failed size:L 100-499 changed lines (additions + deletions). takeover t3 automation: takeover vouch:unvouched PR author is not yet trusted in the VOUCHED list.

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