yoi/.yoi/tickets/20260607-223233-001/thread.md

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Created

Created by LocalTicketBackend create.


Intake summary

Existing Ticket is sufficiently specified and not a duplicate of another visible active Ticket. Intake classifies it as implementation_ready with needs_preflight=true because it changes durable Ticket frontmatter parsing and compatibility semantics. Risk flags: ticket-backend, yaml-parsing, compatibility, panel-regression. Scope is limited to YAML/null-aware Ticket item.md parsing, list/bool handling, preserving emitted format/doctor compatibility, and the workspace panel attention_required:null regression. Validation should include focused ticket parser tests, workspace_panel regression tests, cargo fmt --check, git diff --check, and relevant cargo test commands; final implementation should also consider the project-level nix build requirement.


State changed

Intake completed: requirements, acceptance criteria, non-goals, affected fields, and validation are explicit enough for Orchestrator routing. Human queueing remains required before implementation starts.


State changed

Ticket queued for Orchestrator routing.


Decision

Routing decision: preflight_needed

Reason:

  • The Ticket is well scoped and urgent, but it changes durable Ticket frontmatter parsing and compatibility semantics.
  • Intake explicitly classified it as implementation-ready only with needs_preflight=true, with risk flags ticket-backend, yaml-parsing, compatibility, and panel-regression in the intake summary.
  • YAML/null-aware parsing affects nullable strings, lists, booleans, doctor compatibility, existing fixture behavior, and workspace panel action derivation; a short design boundary check should precede coder delegation.

Evidence checked:

  • Ticket body requirements, candidate affected fields, non-goals, and acceptance criteria.
  • Intake summary and ready -> queued event.
  • Workspace state: develop has only this Ticket's queued item/thread modifications plus an unrelated untracked Ticket directory 20260607-224309-reduce-ticket-lifecycle-commit-noise; no branch/worktree exists for this slug.
  • Visible Pods: intake peer for this Ticket is idle; no coder/reviewer Pods are active for this Ticket.

Next action:

  • Run ticket-preflight-workflow before implementation delegation.
  • Preflight should decide the parsing boundary: whether to deserialize item.md frontmatter through serde_yaml::Value/typed helpers or a narrower YAML-compatible layer; how to preserve emitted format; how to represent quoted literal "null" versus YAML null; and which tests cover Ticket parser plus workspace panel regression.
  • Do not transition queued -> inprogress, create .worktree/parse-ticket-frontmatter-as-yaml, or spawn coder/reviewer Pods until preflight records implementation readiness.

Escalate if:

  • Existing Ticket records rely on raw-string parsing semantics that conflict with YAML behavior.
  • Adding a YAML parser dependency has packaging/licensing implications not already acceptable for this crate graph.
  • Fixing panel action derivation requires broader Ticket workflow/action model changes beyond parsing correctness.

Decision

Preflight decision: implement a YAML-aware typed parsing layer for Ticket item.md frontmatter values, not a strict whole-frontmatter YAML deserialization/migration.

Implementation boundary:

  • Keep parse_item responsible for splitting --- frontmatter from Markdown body and preserving raw_frontmatter: BTreeMap<String, String> for compatibility/debug surfaces.
  • Add serde_yaml to crates/ticket and parse each scalar value through helper functions rather than replacing the whole frontmatter parser.
  • Nullable string helpers must treat YAML null forms (null, Null, NULL, ~, empty value) as None, while preserving quoted literal strings such as "null" as meaningful text where applicable.
  • List helpers should support YAML sequences for labels / risk_flags and preserve existing simple inline list behavior.
  • Boolean helpers should support YAML booleans and keep the existing tolerant yes/no/1/0 behavior.
  • Do not redesign the Ticket schema, migrate records, or change emitted frontmatter formatting in this Ticket.

Rationale:

  • Existing Ticket frontmatter is YAML-like but may contain unquoted string values that are safer to keep under tolerant field-level parsing than to force through strict whole-document YAML semantics.
  • The reported regression is caused by typed optional/list/bool interpretation, so the fix should target typed field extraction while preserving current storage/writer compatibility.

Required tests:

  • attention_required: null, ~, and empty value parse as None.
  • quoted "null" remains distinguishable from YAML null for optional string fields.
  • labels / risk_flags YAML sequences parse correctly.
  • needs_preflight: true parses as Some(true) and tolerant legacy bool forms still work.
  • Workspace panel regression: workflow_state: intake plus attention_required: null derives Clarify, not Edit.

Validation target remains the Ticket acceptance criteria plus project packaging validation where implementation touches source/package dependencies.


Decision

Preflight decision revised by human direction: do not preserve the old raw-string/tolerant Ticket frontmatter parsing semantics. Intentionally remove that backward compatibility and migrate this project's existing .yoi/tickets records to the new strict YAML-compatible format as part of the implementation.

Supersedes the previous preflight recommendation to keep a field-level tolerant compatibility layer.

Updated implementation boundary:

  • Parse item.md frontmatter as real YAML data instead of the current raw key: value string map.
  • Introduce typed YAML deserialization/parsing for Ticket metadata and fail clearly on invalid frontmatter rather than silently preserving legacy raw-string behavior.
  • Add a repository-local migration for the existing .yoi/tickets records in this project so current records are valid under the new parser.
  • Preserve emitted frontmatter format only insofar as it is valid YAML; quote/normalize existing values where needed during migration.
  • Remove per-field ad-hoc "null" filtering and old tolerant list/string compatibility when it conflicts with YAML semantics.
  • Keep the Ticket schema scope focused; do not redesign Ticket lifecycle or panel action model.

Updated tests/validation:

  • Parser tests should assert YAML null/list/bool semantics directly.
  • Tests should cover invalid frontmatter failure where appropriate instead of legacy fallback acceptance.
  • Workspace panel regression remains required: workflow_state: intake plus attention_required: null derives Clarify, not Edit.
  • Migration diff should include only the needed .yoi/tickets frontmatter normalization, not unrelated Ticket content rewrites.

Decision

Routing decision: implementation_ready

Reason:

  • Preflight has now been recorded and revised by human direction.
  • The design boundary is explicit: replace raw-string/tolerant Ticket item frontmatter parsing with real YAML-compatible typed parsing, fail clearly on invalid frontmatter, and migrate this project's existing .yoi/tickets records to valid YAML where needed.
  • The scope is still bounded to Ticket metadata parsing/emission compatibility, project-local Ticket record normalization, and workspace panel regression coverage; lifecycle and panel action model redesign remain non-goals.

Evidence checked:

  • Ticket body requirements and acceptance criteria.
  • Intake summary and previous routing decision.
  • Preflight decision at 2026-06-07T22:55:52Z and human revision at 2026-06-07T22:57:35Z.
  • Workspace state: no branch/worktree exists for this slug; unrelated untracked Ticket directories are present but do not alter the source tree or the child worktree branch point.
  • Visible Pods: intake peer is idle; no coder/reviewer Pods are active for this Ticket.

IntentPacket:

Intent:

  • Parse Ticket item.md frontmatter as real YAML-compatible typed metadata so YAML null/list/bool semantics work correctly, including workspace panel action derivation.

Requirements:

  • Replace the current raw key: value string interpretation for Ticket item frontmatter with typed YAML parsing/deserialization.
  • Ensure YAML null values such as null, ~, and empty nullable fields become None where the schema field is optional.
  • Preserve quoted string semantics: quoted "null" is a string, not null, when valid for that field.
  • Parse YAML sequences for list fields such as labels and risk_flags.
  • Parse YAML booleans directly; remove old tolerant raw-string compatibility where it conflicts with YAML semantics.
  • Fail clearly on invalid frontmatter instead of silently falling back to legacy raw-string behavior.
  • Migrate this repository's existing .yoi/tickets records so their frontmatter is valid for the new parser, with minimal normalization.
  • Add/adjust focused tests for parser semantics and the workspace panel regression: workflow_state: intake plus attention_required: null derives Clarify, not Edit.

Invariants:

  • Do not redesign Ticket lifecycle, workflow states, panel action model, or Ticket schema beyond parser correctness.
  • Keep migration diff limited to necessary .yoi/tickets frontmatter normalization; avoid unrelated Ticket body/thread rewrites.
  • Preserve generated/runtime/local/lock/secret-like .yoi boundaries; do not edit .yoi/memory or .yoi/**/_logs/**.
  • Child worktree must not edit main-workspace Ticket/workflow/docs records directly outside its delegated branch.

Non-goals:

  • No external tracker integration.
  • No broad lifecycle/action-required redesign.
  • No compatibility layer that preserves invalid legacy raw-string semantics against YAML behavior.

Escalate if:

  • Existing project Ticket records cannot be normalized without semantic ambiguity.
  • YAML parsing requires a dependency or package change that fails licensing/packaging validation.
  • Workspace panel regression fix requires changing action derivation semantics beyond correct typed metadata.

Validation:

  • Focused cargo test for crates/ticket parser/doctor tests touched by the change.
  • Focused workspace panel test covering the attention_required: null regression.
  • cargo fmt --check.
  • git diff --check.
  • target/debug/yoi ticket doctor or equivalent built binary doctor.
  • nix build .#yoi because source/dependency/package behavior may change.

Current code map:

  • crates/ticket local backend/item parser/frontmatter rendering/tests.
  • crates/tui workspace panel action derivation tests only if needed for regression coverage.
  • Existing .yoi/tickets records for minimal YAML normalization.

Critical risks:

  • Accidentally treating quoted string values as null.
  • Over-normalizing Ticket records and creating noisy lifecycle/thread diffs.
  • Breaking Ticket doctor/list/show/panel reads on existing records.
  • Adding serde_yaml without updating Cargo/Nix package expectations.

State changed

Orchestrator accepted the queued Ticket for implementation after preflight recorded the strict YAML parsing and project-local migration boundary. Worktree and sibling coder/reviewer routing may proceed from this accepted in-progress state.


Implementation report

Coder delegated:

  • Pod: coder-parse-ticket-frontmatter-as-yaml
  • Worktree: .worktree/parse-ticket-frontmatter-as-yaml
  • Branch: ticket/parse-ticket-frontmatter-as-yaml
  • Scope: read access to main workspace only for startup/cwd; write access to the child worktree.
  • Instructions: implement strict YAML-compatible Ticket item frontmatter parsing, migrate existing project Ticket records minimally, add parser and workspace panel regression tests, run focused validation plus cargo fmt --check, git diff --check, Ticket doctor, and nix build .#yoi, then commit locally on the child branch. No merge, close, main workspace edits, or cleanup delegated.

Implementation report

Coder completed implementation:

  • Pod: coder-parse-ticket-frontmatter-as-yaml
  • Branch/worktree: ticket/parse-ticket-frontmatter-as-yaml at .worktree/parse-ticket-frontmatter-as-yaml
  • Commit: 10d7844fc84683429e24671bf01dd57885a40084 (ticket: parse item frontmatter as YAML)
  • Child worktree status: clean

Implementation summary:

  • Replaced raw Ticket item.md frontmatter parsing with strict YAML parsing in crates/ticket/src/lib.rs.
  • Added typed handling for YAML nulls, sequences, booleans, quoted string values, and clear parse/type errors.
  • Removed tolerant raw-string fallbacks that conflict with YAML semantics.
  • Added focused parser tests and workspace panel regression coverage for workflow_state: intake plus attention_required: null deriving Clarify, not Edit.
  • Updated crates/ticket/Cargo.toml, Cargo.lock, and package.nix for serde_yaml / Nix cargo hash.
  • Migrated 48 existing .yoi/tickets/**/item.md files by quoting YAML-unsafe title values with colons; no bodies, threads, resolutions, or non-frontmatter content were rewritten.

Reported validation:

  • cargo test -p ticket --lib — passed
  • cargo test -p tui workspace_panel --lib — passed
  • cargo fmt --check — passed
  • git diff --check — passed
  • target/debug/yoi ticket doctor — passed
  • nix build .#yoi — passed

Next action:

  • Delegate independent read-only reviewer inspection of commit 10d7844 against the Ticket intent, strict-YAML preflight boundary, migration minimality, and validation evidence before preparing a merge-ready dossier.

Implementation report

Reviewer delegated:

  • Pod: reviewer-parse-ticket-frontmatter-as-yaml
  • Review target: commit 10d7844 on branch ticket/parse-ticket-frontmatter-as-yaml
  • Scope: read-only child worktree plus git metadata needed to inspect the branch.
  • Instructions: inspect parser semantics, clear failure behavior, minimal Ticket record migration, workspace panel regression coverage, dependency/package changes, and validation evidence; return approve or request_changes with blocker/non-blocker separation. No file edits, Ticket writes, merge, close, or cleanup delegated.

Review: request changes

Branch-local reviewer verdict: request changes.

Blocker:

  • The parser now correctly treats schema string fields as YAML strings, but the Ticket frontmatter writer can still emit numeric-looking or otherwise ambiguous string values as plain YAML scalars. Examples such as title: 123, labels: [123], risk_flags: [1], or assignee: 42 would be emitted as non-string YAML scalars and then rejected by the strict parser on the next read. The backend must not create/update Ticket records that its own parser rejects.

Requested fix:

  • Make string serialization conservative, preferably always quote schema string values, or prove round-trip string-ness under serde_yaml before emitting plain scalars.
  • Add regression tests for numeric-looking strings at least for title, labels, and risk_flags; optional string fields such as assignee/attention_required should also be covered if they share the helper.

Positive findings:

  • Strict YAML parsing direction is correct.
  • Null/list/bool parsing and clear failure behavior are covered.
  • Workspace panel regression coverage is present.
  • Migration appears limited to necessary title: frontmatter normalization.
  • Dependency/package changes looked coherent and coder-reported validation was appropriate.

Validation expected after fix:

  • cargo test -p ticket --lib
  • cargo test -p tui workspace_panel --lib
  • target/debug/yoi ticket doctor or equivalent
  • nix build .#yoi if dependency/package outputs remain changed.

Implementation report

Coder completed reviewer-blocker fix:

  • Pod: coder-parse-ticket-frontmatter-as-yaml
  • Branch/worktree: ticket/parse-ticket-frontmatter-as-yaml at .worktree/parse-ticket-frontmatter-as-yaml
  • New commit: dbdccc5 ticket: quote frontmatter strings conservatively
  • Branch commits now: 10d7844 + dbdccc5
  • Child worktree status: clean

Fix summary:

  • format_yaml_string_scalar now emits schema string values as single-quoted YAML scalars conservatively.
  • Applies to scalar string fields such as title, assignee, attention_required, list items in labels/risk_flags, and string updates through set_frontmatter_fields.
  • Added regression coverage for ambiguous/numeric-looking user strings: title: "123", labels: ["123", "01"], risk_flags: ["1", "42"], assignee: "42", attention_required: "0", and action_required: "true".
  • No extra Ticket migration rewrite was needed for the fix.

Reported validation after fix:

  • cargo test -p ticket --lib — passed
  • cargo test -p tui workspace_panel --lib — passed
  • cargo fmt --check — passed
  • git diff --check — passed
  • target/debug/yoi ticket doctor — passed
  • nix build .#yoi — passed

Next action:

  • Send the updated branch back to the reviewer for focused re-review of the prior blocker and final merge-ready verdict.

Implementation report

Merge-ready dossier for orchestrator-merge-completion

Ticket:

  • Id: 20260607-223233-parse-ticket-frontmatter-as-yaml
  • Slug: parse-ticket-frontmatter-as-yaml
  • Workflow state: inprogress

Branch/worktree:

  • Branch: ticket/parse-ticket-frontmatter-as-yaml
  • Worktree: .worktree/parse-ticket-frontmatter-as-yaml
  • Child worktree status: clean (## ticket/parse-ticket-frontmatter-as-yaml)

Commits:

  • 10d7844 ticket: parse item frontmatter as YAML
  • dbdccc5 ticket: quote frontmatter strings conservatively
  • Diff vs develop: 53 files changed; source/package changes in crates/ticket, crates/tui/src/workspace_panel.rs, Cargo.lock, package.nix; 48 .yoi/tickets/**/item.md records minimally normalized.

Intent/invariant check:

  • Intent satisfied: Ticket item.md frontmatter now parses through strict YAML-compatible typed metadata rather than raw key: value strings.
  • Human/preflight boundary followed: old tolerant raw-string semantics that conflict with YAML were not preserved.
  • YAML null/list/bool semantics are handled; invalid/wrong-typed frontmatter fails clearly.
  • Writer/parser round-trip invariant restored by conservative quoting of schema string values.
  • Scope stayed within parser/emitter correctness, minimal project Ticket record normalization, package dependency updates, and workspace panel regression coverage; Ticket lifecycle/state/action model was not redesigned.

Implementation summary:

  • Replaced raw frontmatter parsing in crates/ticket/src/lib.rs with serde_yaml::Value-based strict parsing and typed helpers.
  • Added validation/error paths for wrong YAML field types.
  • Added tests for null values, quoted "null" as string where valid, list fields, bool fields, invalid types, and conservative string emission.
  • Added workspace panel regression coverage so workflow_state: intake plus attention_required: null derives Clarify rather than Edit.
  • Added serde_yaml to crates/ticket/Cargo.toml, updated Cargo.lock, and updated package.nix cargo hash.
  • Normalized existing Ticket item frontmatter by quoting YAML-unsafe title: values containing colons; no body/thread/resolution rewrite was introduced.

Coder evidence:

  • Pod: coder-parse-ticket-frontmatter-as-yaml
  • Initial implementation commit: 10d7844
  • Reviewer-fix commit: dbdccc5
  • Coder-reported final status: child worktree clean.
  • Coder-reported validation after fix:
    • cargo test -p ticket --lib — passed
    • cargo test -p tui workspace_panel --lib — passed
    • cargo fmt --check — passed
    • git diff --check — passed
    • target/debug/yoi ticket doctor — passed
    • nix build .#yoi — passed

Reviewer evidence:

  • Pod: reviewer-parse-ticket-frontmatter-as-yaml
  • First verdict: request_changes due writer emitting ambiguous numeric-looking schema strings as plain YAML scalars.
  • Blocker resolution: reviewer approved after focused re-review of commit dbdccc5.
  • Reviewer inspected branch/worktree state, prior-to-fix delta, focused crates/ticket/src/lib.rs diff, migration scope, packaging/dependency diff, git diff --check, and target/debug/yoi ticket doctor.
  • Final branch-local verdict: approve.

Blockers / findings:

  • Resolved blocker: strict parser could reject records written by the backend if schema strings were emitted as ambiguous plain YAML scalars.
  • Fix: schema string values are conservatively single-quoted, including list entries and update paths; regression tests cover numeric/ambiguous strings.
  • No remaining reviewer blockers or non-blocker required changes.

Validation performed by orchestrator:

  • Confirmed child branch HEAD, clean status, commit list, and diff stat/name-status against develop.
  • Ran typed TicketDoctor: 0 errors; existing repository-wide warnings remain unrelated/truncated.

Residual risks:

  • serde_yaml dependency/package change is larger than parser-only code but was validated by coder-reported nix build .#yoi and reviewer packaging inspection.
  • Ticket migration touches many item files, but the diff is intentionally limited to frontmatter title quoting needed for valid YAML parsing.
  • Broader historical Ticket warnings remain but are unrelated to this change.

Current main workspace dirty state:

  • Main branch has local Ticket record modifications for this Ticket's routing/review/dossier events.
  • No source-code changes are present in the main workspace outside child worktrees.

Pods / cleanup state:

  • Coder Pod is idle/reachable.
  • Reviewer Pod is idle/reachable.
  • Worktree and branch are retained for merge-completion.
  • No merge, final main-branch approval, close, or cleanup has been performed.

Parent/human decision needed:

  • Authorize merge-completion if desired. Without explicit merge authority, stop here with this dossier.
  • Merge-completion should independently verify branch/worktree/commit identity, main workspace safety, and validation requirements before merge/close/cleanup.

Review: approve

Final merge-completion review: approved after authorized merge of ticket/parse-ticket-frontmatter-as-yaml with --no-ff, verification of the merge-ready dossier and branch identity, and successful post-merge validation.

Merge:

  • Branch: ticket/parse-ticket-frontmatter-as-yaml
  • Merge commit: 10dc6da merge: parse ticket frontmatter as yaml

Post-merge validation:

  • cargo test -p ticket --lib — passed
  • cargo test -p tui workspace_panel --lib — passed
  • cargo test -p client generated_prompt_covers_intake_orchestrator_coder_and_reviewer_context -- --nocapture — passed as part of combined validation
  • cargo fmt --check — passed
  • git diff --check — passed
  • cargo run -p yoi -- ticket doctor — passed (doctor: ok)
  • nix build .#yoi — passed

No blockers remain. This review records the main-workspace merge-completion approval; the earlier reviewer Pod verdict remains branch-local evidence.


Implementation report

Merge-completion implementation report:

Merged:

  • Branch: ticket/parse-ticket-frontmatter-as-yaml
  • Method: git merge --no-ff ticket/parse-ticket-frontmatter-as-yaml -m "merge: parse ticket frontmatter as yaml"
  • Merge commit: 10dc6da merge: parse ticket frontmatter as yaml
  • Delegated coder/reviewer Pods were stopped before merge and their scopes reclaimed.

Post-merge validation:

  • cargo test -p ticket --lib — passed
  • cargo test -p tui workspace_panel --lib — passed
  • cargo test -p client generated_prompt_covers_intake_orchestrator_coder_and_reviewer_context -- --nocapture — passed as part of combined validation
  • cargo fmt --check — passed
  • git diff --check — passed
  • cargo run -p yoi -- ticket doctor — passed (doctor: ok)
  • nix build .#yoi — passed

Cleanup status:

  • Coder Pod stopped and scope reclaimed.
  • Reviewer Pod stopped and scope reclaimed.
  • Worktree/branch cleanup follows this validation report.

No merge blockers remain.


State changed

Merge-completion finished: branch was merged into develop, post-merge validation passed, main-workspace approval was recorded, and delegated Pods were stopped. Local status is left open because this request authorized merge, not Ticket close/resolution.


Implementation report

Merge-completion cleanup completed:

  • Merge commit: 10dc6da merge: parse ticket frontmatter as yaml
  • Removed child worktree: .worktree/parse-ticket-frontmatter-as-yaml
  • Deleted merged branch: ticket/parse-ticket-frontmatter-as-yaml
  • Stopped delegated Pods: coder-parse-ticket-frontmatter-as-yaml, reviewer-parse-ticket-frontmatter-as-yaml
  • Final workflow state: done
  • Final local status: left open; no TicketClose was performed because the user authorized merge, not close/resolution.

State changed

Ticket を closed にしました。


完了

Closed as completed.

The YAML frontmatter parsing work was implemented and the Ticket was already in state: done. This close records final lifecycle completion; implementation details, validation, and review history remain in thread.md.