feat!: retire Gemini runtime support

Author: rocky2431

CHANGELOG.md

@@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.6.0] — 2026-07-17
+
+### Changed
+
+- Reduced the supported host matrix to Claude Code, OpenCode, and Codex.
+- Reworked `ultra-verify` into independent two-model verification: the current
+  host remains primary, one read-only external advisor supplies a second view,
+  and evidence rather than model voting determines confidence.
+- Restricted orchestrator routing, MCP session/event inputs, telemetry writes,
+  state schema enums, installer flags, package metadata, and handbooks to the
+  three supported runtimes.
+
+### Removed
+
+- Removed the Gemini CLI adapter, `--gemini` installer surface, extension and
+  conformance packaging, pricing entries, `gemini-collab`, and all active Ultra
+  prompts and documentation that offered Gemini as an advisor or runtime.
+
+### Fixed
+
+- Added a retirement regression contract so unsupported runtimes cannot
+  re-enter active source, package, schema, prompt, or generated plugin surfaces.
+- Rejects unsupported runtime labels before state, event, or telemetry writes,
+  including old databases whose historical SQLite constraints were broader.
+
 ## [0.5.3] — 2026-07-17
 
 ### Fixed
@@ -59,7 +84,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Added first-class native Claude Code and OpenCode plugin builders alongside
   the Codex personal plugin. All hosts build from one explicit runtime asset
-  allowlist; Gemini remains a compatibility extension using the same boundary.
+  allowlist; the then-supported compatibility extension used the same boundary.
 - Added `ubp-handbook` for previewed, backed-up managed-block integration with
   user-level Claude `CLAUDE.md`, Codex `AGENTS.md`, and OpenCode `AGENTS.md`.
 - Added `ultra-tools legacy-memory inspect|archive|prune`; prune requires the
@@ -87,7 +112,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   with the npm package, and fixed `session.subscribe_events` sid filtering.
 - Aligned session/plan input schemas with runtime behavior, including circuit
   breaker output, session spawn intent semantics, and removal of ignored inputs.
-- Bundled Gemini's compatibility MCP runtime durably and restored project-local
+- Bundled the compatibility MCP runtime durably and restored project-local
   `.ultra/state.db` ownership across all adapters.
 - Exported the documented `ultra-tools` executable and included every README
   documentation target in the npm tarball.
@@ -193,8 +218,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Phase 4.6b — full conformance suite** (D45): 4 runtime × 5 capability
   (command / skills / hooks / MCP + no `env._source` leak / install idempotency)
   = 20 additional conformance tests; table-driven `resolve-target.test.cjs`
-  (21 tests) covering `configDir > env > home/cwd` precedence + Gemini
-  extensionRoot append; schema bump 5.2 → 7.1 alongside memory store.
+  (21 tests) covering `configDir > env > home/cwd` precedence and extension
+  root resolution; schema bump 5.2 → 7.1 alongside memory store.
 
 ### Changed
 
@@ -213,9 +238,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   admission control with takeover / resume / abandon strategies (D33).
 - **Phase 4 — cross-runtime distribution** (D41, `5aa1fd0`): shared adapter
   toolkit (`adapters/_shared/` — file-ops / frontmatter / settings-merge /
-  path-rewrite / md-to-toml); 4 runtime adapters (Claude sentinel-block
+  path-rewrite / md-to-toml); the initial runtime adapters (Claude sentinel-block
   settings.json merge; OpenCode `opencode.json.mcp`; Codex `config.toml`
-  marker-block + prompts/; Gemini `extensions/ultra-builder-pro/` package);
+  marker-block + prompts/; plus the then-supported compatibility package);
   `docs/RUNTIME-COMPAT-MATRIX.md` with 10-section capability matrix;
   install / uninstall round-trip tests + idempotency.
 - **Phase 3 — thin-shell commands** (D40, `b3d1797`): 9 commands migrated

README.md

@@ -2,13 +2,13 @@
 
 Multi-runtime plugin suite + autonomous coding factory for the Ultra Builder Pro
 agent engineering system. It ships native plugins for **Claude Code · OpenCode ·
-Codex**, retains a compatibility adapter for Gemini CLI, and orchestrates PRD →
+Codex** and orchestrates PRD →
 dependency graph → parallel session execution → auto-merge with a single
 authoritative `.ultra/state.db`.
 
 <div align="center">
 
-[![Version](https://img.shields.io/badge/version-0.5.3-blue)](./CHANGELOG.md)
+[![Version](https://img.shields.io/badge/version-0.6.0-blue)](./CHANGELOG.md)
 [![Tests](https://img.shields.io/badge/tests-passing-brightgreen)](#verification)
 [![License: MIT](https://img.shields.io/badge/license-MIT-green)](./LICENSE)
 [![Node](https://img.shields.io/badge/node-%E2%89%A522-informational)](./package.json)
@@ -23,7 +23,7 @@ authoritative `.ultra/state.db`.
 
 - **Builds host-native plugins from one allowlist.** Claude Code, OpenCode, and
   Codex receive their own command/skill, agent, hook, and MCP representation.
-  Gemini remains a compatibility adapter; uninstall is symmetric.
+  Install and uninstall are symmetric on every supported host.
 - **Shares state across runtimes.** `.ultra/state.db` (SQLite + WAL) is the
   authoritative source for tasks, sessions, events, and telemetry. `tasks.json`
   and context markdown are generated projections, not handwritten.
@@ -43,7 +43,6 @@ authoritative `.ultra/state.db`.
 npx ultra-builder-pro-cli --claude   --local
 npx ultra-builder-pro-cli --opencode --local
 npx ultra-builder-pro-cli --codex    --local
-npx ultra-builder-pro-cli --gemini   --local
 
 # Or blanket-install to every supported runtime you have
 npx ultra-builder-pro-cli --all --local
@@ -59,8 +58,7 @@ After install, start a new host session/task and point it at the project.
 Claude Code and OpenCode expose native command forms. Codex exposes the same workflows as namespaced plugin
 skills such as `$ultra-builder-pro:ultra-init`, `$ultra-builder-pro:ultra-plan`,
 and `$ultra-builder-pro:ultra-dev`; `command-map.json` records the nine legacy
-command mappings (`ultra-review` remains a directly invocable skill). Gemini
-retains its compatibility command form.
+command mappings (`ultra-review` remains a directly invocable skill).
 See [`docs/RUNTIME-COMPAT-MATRIX.md`](./docs/RUNTIME-COMPAT-MATRIX.md)
 for per-runtime capabilities.
 
@@ -85,15 +83,15 @@ deployment, skill-discovery, and framework guidance belong to their original plu
 
 ## Runtime capability matrix
 
-| Feature                      | Claude Code | OpenCode | Codex CLI | Gemini CLI |
-|------------------------------|:-----------:|:--------:|:---------:|:----------:|
-| Custom commands              | ✅          | ✅       | ✅        | ✅         |
-| Skill loader                 | ✅          | ✅       | ✅ (personal plugin) | ✅ |
-| MCP server (stdio)           | ✅          | ✅       | ✅ (plugin `.mcp.json`) | ✅ |
-| Workflow hooks               | ✅ (native plugin) | ✅ (native JS plugin) | ✅ (native plugin) | ⚠︎ compatibility only |
-| Sub-agents                   | ✅          | ✅       | ✅ (9 native TOML agents) | ⚠︎ |
-| Session worktree isolation   | ✅ (all runtimes; driven by `orchestrator/session-runner.cjs`) | ✅ | ✅ | ✅ |
-| Parallel dispatch + auto-merge | ✅ (`ubp-orchestrator run`) | ✅ | ✅ | ✅ |
+| Feature                      | Claude Code | OpenCode | Codex CLI |
+|------------------------------|:-----------:|:--------:|:---------:|
+| Custom commands              | ✅          | ✅       | ✅        |
+| Skill loader                 | ✅          | ✅       | ✅ (personal plugin) |
+| MCP server (stdio)           | ✅          | ✅       | ✅ (plugin `.mcp.json`) |
+| Workflow hooks               | ✅ (native plugin) | ✅ (native JS plugin) | ✅ (native plugin) |
+| Sub-agents                   | ✅          | ✅       | ✅ (9 native TOML agents) |
+| Session worktree isolation   | ✅ (driven by `orchestrator/session-runner.cjs`) | ✅ | ✅ |
+| Parallel dispatch + auto-merge | ✅ (`ubp-orchestrator run`) | ✅ | ✅ |
 
 Full details in [`docs/RUNTIME-COMPAT-MATRIX.md`](./docs/RUNTIME-COMPAT-MATRIX.md)
 (10 sections, with per-runtime deviations called out).
@@ -124,7 +122,7 @@ Or let the skills drive it. In Codex, invoke
 
 | Binary | Purpose |
 |--------|---------|
-| `ultra-builder-pro-cli` / `ubp` | Installer — `--claude / --opencode / --codex / --gemini / --all`, `--local / --global`, `--uninstall`, `--skip-rtk` |
+| `ultra-builder-pro-cli` / `ubp` | Installer — `--claude / --opencode / --codex / --all`, `--local / --global`, `--uninstall`, `--skip-rtk` |
 | `ubp-orchestrator` | Session dispatch daemon — `run`, `start`, `stop`, `status` |
 | `ultra-tools` | State-layer CLI — `task`, `session`, `status`, `db`, `migrate`; explicit `legacy-memory` archive/prune migration |
 | `ubp-handbook` | Preview/apply the managed Ultra contract in `CLAUDE.md` / `AGENTS.md`, with backup |