<!-- event: create author: "yoi ticket" at: 2026-06-21T16:30:12Z -->

## 作成

LocalTicketBackend によって作成されました。

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<!-- event: intake_summary author: hare at: 2026-06-21T16:30:49Z -->

## Intake summary

Marked ready by `yoi ticket state`.

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<!-- event: state_changed author: "yoi ticket" at: 2026-06-21T16:30:49Z from: planning to: ready reason: cli_state field: state -->

## State changed

Marked ready by `yoi ticket state`.


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<!-- event: state_changed author: workspace-panel at: 2026-06-21T16:35:06Z from: ready to: queued reason: queued field: state -->

## State changed

Ticket を `workspace-panel` が queued にしました。


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<!-- event: decision author: yoi-orchestrator at: 2026-06-21T16:36:30Z -->

## Decision

Routing decision: `implementation_ready_parallel_with_conflict_risk`

Reason:
- Ticket body は Workspace web UI に左 sidebar navigation panel を追加する UX skeleton として、header / repositories / objectives / workers sections、responsive behavior、section-level error handling、Deno validation まで具体化されている。
- Relations are `related` only to `00001KVMFFYVX` and `00001KVNEKH9Q`; no blocking dependency is recorded。
- `00001KVMFFYVX` is closed/integrated。
- `00001KVNEKH9Q` is currently in review and touches Host/Worker API plus `web/workspace/src/routes/+page.svelte`; this creates merge-conflict risk but not an authority blocker. Ticket body explicitly allows Workers section to be placeholder before Host/Worker API exists and asks for component boundary that can later connect to that API。
- Current queued Ticket is this Ticket only。
- Orchestrator worktree is clean on `orchestration` at `d4de8e26`; target worktree / branch is not present。

Evidence checked:
- Ticket body via direct `item.md` read。
- `relations.json`: related to `00001KVMFFYVX` and `00001KVNEKH9Q` only。
- `TicketOrchestrationPlanQuery(00001KVNG9B9Z)`: no records。
- `TicketList(state=queued)`: this Ticket is the only queued Ticket。
- `00001KVNEKH9Q` current state is `inprogress` / reviewer running; no approval/merge yet。
- Orchestrator git state / worktree list / branch list checked from `/home/hare/Projects/yoi/.worktree/orchestration` only。

IntentPacket:

Intent:
- Add a left sidebar navigation skeleton to Workspace web SPA that surfaces Workspace / Repository / Objective / Worker navigation without adding deep editing or business authority。

Binding decisions / invariants:
- Frontend-only UI skeleton unless a minimal API read is already available; do not change backend authority without need。
- Keep static SPA; no SSR or frontend lifecycle/business authority。
- Objective section should read existing `/api/objectives` and display bounded title/state data。
- Worker section should use a component/data boundary that can connect to Host/Worker API, but must safely show placeholder/empty/error if API is absent or in flux。
- Do not expose Pod as primary UI/domain naming; use `workers`。
- API failures are section-local and must not take down the whole page。
- Avoid broad design-system churn; keep current skeleton style direction。
- Be aware that `00001KVNEKH9Q` may merge Host/Worker UI/API changes concurrently; keep sidebar changes narrow and componentized to reduce conflict。

Requirements / acceptance criteria:
- Left sidebar is visible in Workspace web UI。
- Sidebar header displays workspace name/label plus settings placeholder/icon/button。
- Sections present: `repositories`, `objectives`, `workers`。
- Objectives section fetches existing `/api/objectives` and displays title/state minimal info。
- Workers section safely displays placeholder/empty/error if Host/Worker API is not yet integrated; if API is available in branch, it may use it through a component boundary。
- Main content and sidebar layout are separated and responsive enough to avoid narrow-viewport breakage / horizontal overflow。
- Section-level error/empty states are bounded。
- Deno check/build passes。

Implementation latitude:
- Split Svelte components under `web/workspace/src/lib` if useful。
- Keep repository section placeholder/local summary if no Repository API exists。
- Use simple CSS layout; no full design system。
- If concurrent `00001KVNEKH9Q` merge creates conflict, report rather than broad rewrite。

Escalate if:
- Implementing sidebar requires backend API redesign beyond minimal frontend skeleton。
- Workers section cannot be safely decoupled from unmerged Host/Worker API。
- Deno/Svelte tooling fails for reasons unrelated to this Ticket。
- Merge conflict with `00001KVNEKH9Q` becomes non-trivial and requires orchestration sequencing。

Validation plan:
- `cd web/workspace && deno task check && deno task build`
- `git diff --check`
- `cargo run -p yoi -- ticket doctor`
- `nix build .#yoi --no-link` preferred because Workspace frontend package surface is touched。
- `cargo test -p yoi-workspace-server` only if backend code changes。

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<!-- event: state_changed author: yoi-orchestrator at: 2026-06-21T16:36:37Z from: queued to: inprogress reason: human_authorized_unblocked_sidebar_ui_implementation field: state -->

## State changed

Human authorized queue routing from Workspace Dashboard. Ticket has concrete frontend acceptance criteria and no blocking relation; related Host/Worker API work is in review and creates merge-conflict risk but not an authority blocker. Orchestrator accepts implementation with narrow frontend scope.

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<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-21T16:37:34Z -->

## Implementation report

Implementation start report:

- Created child implementation worktree:
  - `/home/hare/Projects/yoi/.worktree/00001KVNG9B9Z-workspace-sidebar`
- Created branch:
  - `impl/00001KVNG9B9Z-workspace-sidebar`
- Base commit:
  - `2c7ef24a ticket: accept workspace sidebar ui`
- Confirmed tracked Ticket project records are visible in the child worktree。
- Confirmed `.yoi/memory` has no tracked/untracked entries in the child worktree check。
- Spawned sibling Coder Pod:
  - `yoi-coder-00001KVNG9B9Z`
- Coder scope:
  - read: `/home/hare/Projects/yoi`
  - write: `/home/hare/Projects/yoi/.worktree/00001KVNG9B9Z-workspace-sidebar`

Parallelization note:
- `00001KVNEKH9Q` remains active in review and may merge Host/Worker API plus `web/workspace/src/routes/+page.svelte` changes. Coder was instructed to keep sidebar work narrow/componentized and report if conflicts become non-trivial。

Next action:
- Wait for Coder implementation report, then spawn Reviewer read-only for the implementation diff。

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<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-21T16:54:08Z -->

## Implementation report

Coder conflict-resolution report received from `yoi-coder-00001KVNG9B9Z`.

Final implementation HEAD:
- `4ab696b4` merge commit from current `orchestration` into `impl/00001KVNG9B9Z-workspace-sidebar`

Relevant commits:
- `d3b8bdfd feat: add workspace sidebar skeleton`
- `4ab696b4` merge/conflict-resolution commit

Conflict resolution summary:
- Resolved `web/workspace/src/routes/+page.svelte` conflict after Host/Worker API/UI from `00001KVNEKH9Q` landed。
- Preserved merged Host/Worker main content/cards/table。
- Preserved sidebar navigation skeleton。
- Updated sidebar Workers section to consume available `/api/workers` response through typed `ListResponse<Worker>`。
- Kept Pod naming out of sidebar, presenting workers by label/state/status/role。
- Changes remain scoped to Workspace frontend。

Coder validation reported:
- `cd web/workspace && deno task check`: passed
- `cd web/workspace && deno task build`: passed
- `git diff --check`: passed
- `git diff --check orchestration..HEAD`: passed
- `cargo run -p yoi -- ticket doctor`: passed
- `nix build .#yoi --no-link`: passed
- `cargo test -p yoi-workspace-server`: not run because backend code was not changed during conflict resolution

Generated artifact cleanup:
- Coder removed generated/ignored frontend artifacts after validation:
  - `web/workspace/.svelte-kit`
  - `web/workspace/build`
  - `web/workspace/node_modules`

Orchestrator evidence checked:
- Worktree clean on `impl/00001KVNG9B9Z-workspace-sidebar` at `4ab696b4`。
- Diff `orchestration..HEAD` touches expected frontend files only: new `web/workspace/src/lib/workspace-sidebar/*` components and `web/workspace/src/routes/+page.svelte`。
- `git diff --check orchestration..HEAD`: passed。
- Merge-tree conflict scan vs current `orchestration`: no conflict markers / no changed-in-both diagnostics。

Next action:
- Route to read-only Reviewer Pod for acceptance review。

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<!-- event: comment author: yoi-orchestrator at: 2026-06-21T16:54:49Z -->

## Comment

Review routing:

Spawned read-only Reviewer Pod:
- `yoi-reviewer-00001KVNG9B9Z-r1`

Review target:
- Worktree: `/home/hare/Projects/yoi/.worktree/00001KVNG9B9Z-workspace-sidebar`
- Branch: `impl/00001KVNG9B9Z-workspace-sidebar`
- Current implementation HEAD: `4ab696b4`
- Implementation commits:
  - `d3b8bdfd feat: add workspace sidebar skeleton`
  - `4ab696b4` merge/conflict-resolution commit from current `orchestration`
- Primary review diff: `orchestration..HEAD` inside implementation worktree, so review sees final sidebar changes on top of current Host/Worker API/UI state。

Reviewer scope:
- read-only `/home/hare/Projects/yoi`

Reviewer focus:
- Sidebar visibility/layout/responsive behavior。
- Workspace header/settings placeholder。
- Repositories/objectives/workers sections。
- Objective and worker section bounded loading/empty/error handling。
- Worker naming avoids Pod-primary UI。
- Main Host/Worker content from `00001KVNEKH9Q` remains preserved after conflict resolution。
- No backend authority/SSR/business logic changes。

Orchestrator will wait for reviewer verdict before integration。

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<!-- event: review author: yoi-reviewer-00001KVNG9B9Z-r1 at: 2026-06-21T17:00:16Z status: approve -->

## Review: approve

Verdict: `approve`

確認範囲:
- Ticket authority:
  - `.yoi/tickets/00001KVNG9B9Z/item.md`
  - `.yoi/tickets/00001KVNG9B9Z/thread.md`
- Implementation diff:
  - `git diff --name-status orchestration..HEAD`
  - implementation-only diff against merge-base `a607a1f20d0622b1f556c36cca155da68109fe25..HEAD`
- Frontend files:
  - `web/workspace/src/routes/+page.svelte`
  - `web/workspace/src/lib/workspace-sidebar/WorkspaceSidebar.svelte`
  - `web/workspace/src/lib/workspace-sidebar/RepositoriesNavSection.svelte`
  - `web/workspace/src/lib/workspace-sidebar/ObjectivesNavSection.svelte`
  - `web/workspace/src/lib/workspace-sidebar/WorkersNavSection.svelte`
  - `web/workspace/src/lib/workspace-sidebar/types.ts`
- API shape spot-check:
  - `crates/workspace-server/src/server.rs`
  - `crates/workspace-server/src/hosts.rs`
  - `crates/workspace-server/src/records.rs`

Blocking issues:
- None。

Acceptance verification:
- Left sidebar is wired into `+page.svelte` and layout is separated from main content。
- Sidebar header shows workspace label/name and disabled settings placeholder。
- `repositories`, `objectives`, and `workers` sections are present。
- Objectives section fetches `/api/objectives` and handles loading/error/empty locally。
- Workers section fetches `/api/workers`, uses Worker naming in visible UI, and handles 404/empty/error locally。
- Main Host/Worker content from current orchestration branch is preserved。
- No backend/API authority changes were introduced by the implementation-only diff。
- Responsive CSS uses a two-column layout on wide viewports and single-column layout below 760px, with `min-width: 0`, wrapping, and table overflow containment。

Non-blocking concerns:
- `orchestration..HEAD` currently shows apparent `.yoi/tickets/00001KVNG9B9Z/item.md` / `thread.md` reversions because `orchestration` has newer review-routing/report commits after the implementation branch’s merge-base. The implementation-only diff against the merge-base is frontend-only, and `git merge-tree --write-tree orchestration HEAD` reports a clean merge. This should not block a normal merge, but avoid applying the literal `orchestration..HEAD` patch/squash in a way that drops newer ticket thread entries。

Reviewer validation:
- `git diff --check`: passed
- `git diff --check orchestration..HEAD`: passed
- `git diff --check $(git merge-base orchestration HEAD)..HEAD`: passed
- `cd web/workspace && deno task check`: passed (`svelte-check found 0 errors and 0 warnings`)
- `cd web/workspace && deno task build`: passed; static adapter wrote site to `build`
- `cargo run -p yoi -- ticket doctor`: passed (`doctor: ok`)
- `nix build .#yoi --no-link`: passed
- `cargo test -p yoi-workspace-server`: passed (`6 passed; 0 failed`)
- `git merge-tree --write-tree orchestration HEAD`: passed with status 0; produced merged tree `24e0e026264333fc63d60c0e2d649839445acb64`

Generated artifacts:
- Reviewer did not clean generated ignored artifacts after validation:
  - `web/workspace/.svelte-kit/`
  - `web/workspace/build/`
  - `web/workspace/node_modules/`
- They are ignored and not tracked; `git ls-files --others --exclude-standard` reports `0`。

Worktree status:
- Clean tracked state on `impl/00001KVNG9B9Z-workspace-sidebar` at `4ab696b4`。

---

<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-21T17:00:46Z -->

## Implementation report

Reviewer r1 approvalを受けて、実装ブランチを Orchestrator worktree の `orchestration` branch に統合した。

統合:
- Merge commit: `613f4126 merge: workspace sidebar navigation`
- Merged branch: `impl/00001KVNG9B9Z-workspace-sidebar`
- Implementation commits:
  - `d3b8bdfd feat: add workspace sidebar skeleton`
  - `4ab696b4` merge/conflict-resolution commit from current `orchestration`

Orchestrator worktree validation:
- `git diff --check HEAD^1..HEAD`: passed
- `cd web/workspace && rm -rf node_modules .svelte-kit build && deno task check`: passed (`svelte-check found 0 errors and 0 warnings`)
- `cd web/workspace && deno task build`: passed
- `cargo test -p yoi-workspace-server`: passed (`6 passed`)
- `cargo run -p yoi -- ticket doctor`: passed (`doctor: ok`)
- `nix build .#yoi --no-link`: passed

Validation generated ignored frontend artifacts in Orchestrator worktree:
- `web/workspace/node_modules/`
- `web/workspace/.svelte-kit/`
- `web/workspace/build/`

These were removed after validation. Final Orchestrator worktree status after validation cleanup is clean on `orchestration` at `613f4126`。

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<!-- event: state_changed author: yoi-orchestrator at: 2026-06-21T17:00:59Z from: inprogress to: done reason: implementation_merged_and_validated field: state -->

## State changed

Reviewer approval、Orchestrator worktree への統合、Deno check/build、workspace-server tests、Ticket doctor、Nix build が完了したため `done` に遷移する。

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<!-- event: state_changed author: hare at: 2026-06-21T17:01:13Z from: done to: closed reason: closed field: state -->

## State changed

Ticket を closed にしました。


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<!-- event: close author: hare at: 2026-06-21T17:01:13Z status: closed -->

## 完了

Workspace web UI に sidebar navigation panel を追加し、Orchestrator worktree の `orchestration` branch に統合した。

主な成果:
- `web/workspace/src/lib/workspace-sidebar/` に sidebar components を追加:
  - `WorkspaceSidebar.svelte`
  - `RepositoriesNavSection.svelte`
  - `ObjectivesNavSection.svelte`
  - `WorkersNavSection.svelte`
  - `types.ts`
- `web/workspace/src/routes/+page.svelte` を sidebar + main content の responsive two-column layout に更新。
- Sidebar header に workspace label/name と disabled settings placeholder を表示。
- `repositories`, `objectives`, `workers` sections を追加。
- Objectives section は `/api/objectives` を読み、title/state と empty/error states を section-local に表示。
- Workers section は `/api/workers` を読み、Worker label/state/status/role を表示し、Pod を primary UI naming として露出しない。
- Repository section は future Repository API に繋げやすい placeholder seam として実装。
- Host/Worker API/UI merge 後の `+page.svelte` conflict を解消し、main Host/Worker content と sidebar skeleton を両方維持。
- Backend/API authority, SSR, mutation/business logic は追加していない。

統合・検証:
- Merge commit: `613f4126 merge: workspace sidebar navigation`
- Implementation commits: `d3b8bdfd`, `4ab696b4`
- Reviewer final verdict: approve
- Validation passed: `git diff --check HEAD^1..HEAD`, `deno task check`, `deno task build`, `cargo test -p yoi-workspace-server`, `cargo run -p yoi -- ticket doctor`, and `nix build .#yoi --no-link`。

範囲外:
- Settings page, Repository CRUD/API, Objective edit/detail UI, Worker start/stop/attach controls, drag/drop/collapsible tree, auth, multi-workspace switcher は実装していない。

---

<!-- event: implementation_report author: yoi-orchestrator at: 2026-06-21T17:01:46Z -->

## Implementation report

Post-close cleanup completed。

- Stopped child Pods and reclaimed scope:
  - `yoi-coder-00001KVNG9B9Z`
  - `yoi-reviewer-00001KVNG9B9Z-r1`
- Removed ignored frontend validation artifacts from child worktree before worktree removal:
  - `web/workspace/node_modules/`
  - `web/workspace/.svelte-kit/`
  - `web/workspace/build/`
- Removed implementation worktree:
  - `/home/hare/Projects/yoi/.worktree/00001KVNG9B9Z-workspace-sidebar`
- Deleted implementation branch:
  - `impl/00001KVNG9B9Z-workspace-sidebar`
- Orchestrator worktree remains clean on `orchestration` at `c29eba0c`。

Root/original workspace was not used for merge/validation/cleanup operations。

Follow-up note:
- `00001KVNGJPRG` had been left queued behind this sidebar work due `do_not_parallelize`; this blocker is now cleared for re-routing on top of the settled sidebar/navigation structure。

---
