Summary

• add an optional Spectre.Console terminal UI with explicit Dry-run default, line-oriented fallback, typed arguments, and unchanged headless behavior
• add strict private JSONL live events, canonical report/exit reconciliation, content-addressed locked build caching, and controlled cancellation
• add macOS, Ubuntu, and Windows gates plus architecture, accessibility, security, dependency, distribution, and autonomous-run evidence

Safety boundaries

• the TUI delegates to exactly one existing Bash or PowerShell maintenance engine process
• it grants no commit, push, merge, provider, secret, cleanup, or administrator authority
• mutating selections default to No; target repositories are never committed or pushed by the maintenance command
• generated binaries, caches, logs, and event streams remain untracked and user-private

Validation

• 62/62 .NET tests
• 14/14 focused wrapper tests
• 79 maintenance tests, 12 expected platform skips
• locked restore and warning-free Release build
• both dotnet format --verify-no-changes gates
• zero known vulnerable NuGet packages
• PSScriptAnalyzer 1.25.0: 147 files, zero findings
• repository Homogeneity: 30/30, 100%
• Bash syntax, JSON schema positive/negative fixtures, Documentation Impact Bash/PowerShell, script inventory, secret scan, specify check, and statistics reproducibility all pass

Evidence

See specs/018-agentic-workspace-tui/autonomous-run-evidence.md and specs/018-agentic-workspace-tui/autonomous-run-state.json.

A causal evidence-only closeout will archive the completed intake and update the active Series only after merge facts exist. No successor feature is started.