v0.5.3

Added

• /rite:pr:run — a batch PR lifecycle command that runs open → iterate → ready → merge → cleanup sequentially and autonomously across multiple Issues.
• /rite:lint number-reference guard — a number-reference-check.sh lint (non-blocking warning) that detects Issue/PR number references (#NNN, Issue #NNN, PR #NNN) re-introduced into the number-free surface (CHANGELOG.md, CHANGELOG.ja.md, lint.md), guarding the cleaned surface against recurrence.

Fixed

• Parallel sessions no longer contaminate each other's flow state — session_id resolution is now env-first, so concurrent sessions resolve distinct identifiers instead of clobbering a shared flow_state.
• /rite:pr:cleanup reclaims temporary branches and worktrees name-independently — cleanup no longer relies on branch or worktree naming to find and remove the artifacts it created.
• In-use session worktrees are protected from reap — lazy reap skips worktrees owned by active sessions, and /clear self-repairs dangling session state.
• drift-check over-detection removed — eliminated false-positive drift findings and aligned the document-missing reason emitted by the check.
• decompose-issues.sh no longer crashes on an empty labels_csv — Sub-Issue creation handles an empty label set instead of failing.
• /rite:pr:merge success path terminates with a fixed exit 0 — a trailing no-op prevents the merge success path from inheriting a non-zero exit status.

Changed

• wiki:ingest write-failure handling — the write-failure path now emits a dedicated content_write_failed reason instead of a generic failure reason.
• Documentation surface made number-free and present-tense — removed implicit history-dependent phrasing (e.g. "the previous behavior", "the old way") and Issue/PR number references across user-facing config and docs, spec and design docs, command/skill/hook/script comments, and tests, stating the rationale directly in prose. The CHANGELOG history-dependent-phrasing policy is now documented in the file header.
• Account migration — updated B16B1RD references to asakaguchi following the repository account transfer.

Removed

• README v0.4.0 Breaking Changes section — dropped the now-historical upgrade notice from the README.