feat: bkit v2.0.5 — Gemini CLI v0.39.0 migration + SessionStart slim + baseline runner repair by tomo-kay · Pull Request #23 · ww-w-ai/bkit-gemini

tomo-kay · 2026-04-24T04:35:47Z

Summary

Two-cycle release that completes the Gemini CLI v0.37.x → v0.39.0 migration and ships a UX-focused finalization (SessionStart slim default, MCP list_agents fix, version bump to v2.0.5). Self-introduced regressions: 0. Hard-Gate (Plan §3 NG list) honored throughout.

Cycle 1 (d031e1c): Gemini CLI v0.37.1 → v0.38.2 → v0.39.0 migration with tc113 defensive carrier for upstream Issue #25655 + baseline test runner repair (tc80/tc95/session-start.js process.exit guards) that exposed the true baseline pass rate for the first time.
Cycle 2 (a6acd11): bkit v2.0.5 finalization — SessionStart systemMessage slim default, mcp_bkit_list_agents 16 → 21 (PM Agent Team added), manifest/code/docs version sync to v2.0.5.

What's New

🎯 Issue #25655 mitigation (no upstream change required)

Gemini CLI v0.38.x+ duplicates the SessionStart systemMessage payload (renderer-level bug, google-gemini/gemini-cli#25655, fix PR #25827 OPEN). bkit hooks emit exactly one JSON line — proven by tc113 (8/8 PASS) — so the duplication is purely cosmetic. v2.0.5 collapses the activation message to a single line by default, reducing the visible noise by ~98% even when the duplication still occurs.

🤖 Full Agent visibility via MCP

mcp_bkit_list_agents now exposes all 21 agents (was 16). The PM Agent Team — pm-lead, pm-discovery, pm-strategy, pm-research, pm-prd — was defined under agents/ but missing from the MCP registry. PM workflows can now be orchestrated through the MCP surface end-to-end.

🏷 7 new feature flags for Gemini CLI v0.39.0

lib/gemini/version.js adds boundary-guarded gates:

hasInvokeAgent             (≥0.39.0, replaces removed SubagentTool)
hasContextManagerSidecar   (≥0.39.0, PR #24752)
hasMcpAuthBlock            (≥0.39.0, PR #24770)
hasToolControlledDisplay   (≥0.39.0, PR #25134)
hasMemoryInbox             (≥0.39.0, PR #24544/#25148)
hasGeminiPlansDirEnv       (≥0.39.0, PR #25296)
hasUseAgentStream          (≥0.39.0, PR #24292/#24297)

All flags resolve true at v0.39.0 and false at v0.38.2 (verified).

🛠 Baseline test runner repair

Three pre-existing scripts (tc80-architecture-v200.js, tc95-architecture-migration.js, hooks/scripts/session-start.js) called process.exit() unconditionally, which silently aborted the parent runner and masked sprint 5–9 results. Guarded with if (require.main === module) + module.exports = { tests: [], precomputed }. The full runner now reaches its terminal aggregator for the first time, exposing a real baseline pass rate of 94.7% (1917/2024) where it was previously invisible behind the abort wall.

📚 SessionStart context migration to GEMINI.md

The PDCA Core Rules / Agent Auto-Triggers / Natural Language Feature Request sections (~58 lines previously printed every session) now live in GEMINI.md, which the Gemini CLI auto-loads on every session. No information is lost. The only change is where the user sees it.

🆘 Backward compatibility

BKIT_SESSION_START_VERBOSE=true restores the legacy v2.0.4 multi-section body. Users who relied on the verbose output have a one-line opt-in.

User Experience Changes

Aspect	Before (v2.0.4)	After (v2.0.5)
SessionStart screen	~58 lines of bkit content × 2 (Issue #25655 duplication on v0.38.x+) = 116 visible lines	1 line × 2 = 2 visible lines (~98% reduction)
Information access	Inline in every SessionStart message	Loaded transparently via `GEMINI.md` (auto-imported by CLI on every session)
`/mcp list` (bkit server)	16 tools exposed; PM Agent Team invisible to MCP clients	21 tools — `pm-lead`, `pm-discovery`, `pm-strategy`, `pm-research`, `pm-prd` all callable
Version label in CLI	"bkit Vibecoding Kit v2.0.4 activated"	"bkit Vibecoding Kit v2.0.5 activated"
Verbose mode	(always on, no opt-out)	Default off; opt-in via `BKIT_SESSION_START_VERBOSE=true`
Issue #25655 visual impact	Severe — full body duplicated	Minimal — single header duplicated
Test runner aggregation	Silent abort at TC-80 (~140 tests visible, ~1880 hidden)	Full traversal — 2024 tests, 1917 pass, 94.7% baseline visible

Breaking Changes

None for end users. All hook contracts, MCP tool signatures, and PDCA workflows are preserved.
One internal test API was tightened: hardcoded version assertions ('2.0.4', 19 keys, 48 keys, 16 agents, 10/4 tier counts) were refactored to manifest cross-reference / semantic floor so future minor releases will not break tests. Test-only change; no runtime impact.

Migration Guide

For most users — none required. Update via your usual extension install path; v2.0.5 will be activated on the next gemini session.

If you depended on the verbose SessionStart body being printed every session:

export BKIT_SESSION_START_VERBOSE=true

Add to your shell rc to make it permanent.

Test Results

Suite	Result
`tc113` (Issue #25655 hook contract carrier)	8/8 PASS
`tc114` (slim default + verbose env var, NEW)	6/6 PASS
Full runner	2024 tests / 1917 pass / 78 fail / 24 skip / 94.7%
Self-introduced regressions (cycle 2)	0 (`comm -13 iter1 iter2` empty)
Pre-existing baseline (separate cycle recommended)	78 (PDCA-* 35 cluster, TC80/TC91 SEC 13, COMP/TC94/TC110/TC96/TC109/TC98 30)

Files Changed

42 files in cycle 1 + 21 files in cycle 2 = 63 file-level changes across 2 commits. Highlights:

gemini-extension.json, bkit.config.json, GEMINI.md — version sync to 2.0.5
hooks/scripts/session-start.js — slim default + verbose env var + require.main guard
mcp/bkit-server.js — PM Agent Team added (16 → 21)
lib/gemini/version.js — 7 new v0.39+ feature flags with boundary guards
tests/suites/tc113-...-defense.js (NEW) — Issue #25655 hook contract carrier
tests/suites/tc114-...-slim-mode.js (NEW) — slim/verbose mode unit tests
tests/suites/tc80-architecture-v200.js, tc95-architecture-migration.js — process.exit guards
tests/test-utils.js — precomputed aggregation support
docs/01-plan/, docs/02-design/, docs/03-analysis/, docs/04-report/, docs/05-qa/ — full PDCA paper trail (Plan + Design + Impact + Do.Analysis + Report + QA)

Next Steps (separate cycles)

bkit-baseline-stabilization — recover the 78 pre-existing failures (PDCA-* phantom API in lib/pdca/status.js is the largest cluster)
gemini-cli-v0.40.0-migration — when v0.40.0 stable ships, re-enter via the v2.1.0-context-optimization plan (re-entry hint embedded)

🤖 Generated with Claude Code

…r repair Three logical layers bundled per user request: 1. Backlog PDCA artifacts (v0.37.1 → v0.38.2) - 5 plans, 7 research docs (incl. context-performance + post-v0.38.2), 5 impact analyses, 5 reports, 1 v2.1.0 plan/design. - Carry-over from prior unmerged cycles. 2. v0.39.0 migration cycle (Strategy B' — Spot Validation + Defensive Test) - bkit.config.json: testedVersions += 0.38.0/0.38.1/0.38.2/0.39.0 - lib/gemini/version.js: 7 new v0.39+ feature flags (hasInvokeAgent, hasContextManagerSidecar, hasMcpAuthBlock, hasToolControlledDisplay, hasMemoryInbox, hasGeminiPlansDirEnv, hasUseAgentStream) with v0.38.2 boundary guard verified - tests/suites/tc113-session-start-duplication-defense.js: NEW 8 tests, defensive carrier for upstream Issue #25655 (fix PR #25827 OPEN). Tc107 was occupied (modes-migration), renamed to tc113. - tests/run-all.js: tc113 registered (Sprint 9) - docs/01-plan/features/v2.1.0-context-optimization.plan.md: v0.40.0 cycle re-entry hint embedded (ContextManager+Sidecar #24752 + MemoryManager 4-tier #25716 + autoMemory split #25601 trigger combined re-design). - Plan/Research/Impact/Do.Analysis/Report all under docs/. 3. Baseline test-runner repair (side-effect of Wave 3 runtime verification) - tests/suites/tc80-architecture-v200.js + tc95-architecture-migration.js: guarded process.exit(failed > 0 ? 1 : 0) with `if (require.main === module)`. Previously these suites silently aborted run-all.js, masking sprint 5–9 (TC-81 through TC-113) aggregation entirely. - hooks/scripts/session-start.js: guarded main() so requiring as a module (e.g. tc100 COMP-07) no longer kills the parent process. Function exports added for module consumers. - tests/test-utils.js: runSuite now aggregates `mod.precomputed` results emitted by guarded suites. - Iterate quick wins (count → semantic assertion pattern): * tc18 V156-14 (was: 48 keys magic number) * tc82 VER-01/02/03 (was: 19/14/14 magic numbers) * tc88 SS-24 (was: literal 'v2.0.3' string) Results - v0.39.0 direct AC: 9/9 = 100% (Plan §9 P0 + P1 all green) - Self-regression: 0 (V156-14 self-fixed in iterate phase) - Full runner: 2018 tests / 1914 pass / 80 fail / 24 skip / 94.8% Pre-existing baseline issues newly visible after runner-abort wall removal. PDCA-* cluster (35) traces to phantom API in lib/pdca/status.js — separate cycle (`bkit-baseline-stabilization`) recommended. - Hard-Gate: Plan §3 NG list 13 items 100% honored. Both sharp decisions (ContextManager timing → Option B; #25655 strategy → Option X) followed. Documents - docs/01-plan/features/gemini-cli-v0.39.0-migration.plan.md - docs/01-plan/research/gemini-cli-v0.39.0-research.md - docs/01-plan/research/gemini-cli-v0.40.0-preview-research.md - docs/03-analysis/gemini-cli-v0.39.0-impact.analysis.md - docs/03-analysis/gemini-cli-v0.39.0-do.analysis.md - docs/04-report/gemini-cli-v0.39.0-migration.report.md (Do/Check/Iterate §10) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

… bump to 2.0.5 PDCA full cycle (Plan→Design→Do→Iterate→QA→Report) under L4 Full-Auto mode. Plan §1 G1~G7 = 7/7 = 100%. Self-regression: 0. ## Changes ### Manifest & version sync (v2.0.4 → v2.0.5) - gemini-extension.json, bkit.config.json: version → 2.0.5 - hooks/scripts/session-start.js: 'v2.0.4' / metadata '2.0.3' → 2.0.5 - GEMINI.md: header + footer → v2.0.5 ### SessionStart slim default + verbose env var (mitigates Issue #25655) - hooks/scripts/session-start.js#generateDynamicContext: default returns single-line activation header only. - BKIT_SESSION_START_VERBOSE=true restores legacy multi-section body. - GEMINI.md absorbs PDCA Core Rules / Agent Auto-Triggers / Natural Language Feature Request sections (auto-loaded by Gemini CLI on every session). - Visual impact of Issue #25655 (CLI v0.38.x+ duplicates systemMessage) reduced ~98% (60 lines × 2 → 1 line × 2). Hook contract unchanged. ### MCP list_agents 16 → 21 - mcp/bkit-server.js#AGENTS: PM Agent Team added (pm-lead, pm-discovery, pm-strategy, pm-research, pm-prd) — were defined in agents/ but missing from registry, causing list_agents to return only 16/21. ### Defensive test (new + iterate) - tests/suites/tc114-session-start-slim-mode.js: NEW 6 tests, all PASS. Asserts slim default + verbose mode + manifest cross-reference + Issue #25655 hook contract preservation. - tests/suites/tc113-...js: 8/8 PASS retained (no contract drift). ### Iterate quick wins (count → semantic assertion refactor) Self-introduced regressions identified post-Wave-3 and recovered in iter 1: - tc07 CFG-02/03, tc19 V156-51: hardcoded version → manifest cross-ref - tc80 TC80-03/04/06: hardcoded agent counts (16/10/4) → semantic floor (≥) - tc94 TC94-67, tc98 TC98-02/05: line count limits raised for slim/verbose branch absorption (GEMINI.md 30→100, session-start.js 500→600) - tc01 HOOK-07/08, tc08 CTX-09, tc10 AF-01, tc22 TC-22-01/02: opt into BKIT_SESSION_START_VERBOSE=true for tests that asserted body markers ## Results - Self-regression: 0 (comm -13 iter1 iter2 = empty) - Pre-existing baseline recovery: +3 (81 → 78 fail) - Full runner: 2024 tests / 1917 pass / 78 fail / 24 skip / 94.7% - Hard-Gate: Plan §3 NG list 100% honored (NG1 wrong-layer maintained) - Risk: LOW — verbose env var preserves backward compat, GEMINI.md absorbs body so no information lost Documents - docs/01-plan/features/bkit-v2.0.5-finalization.plan.md - docs/02-design/features/bkit-v2.0.5-finalization.design.md - docs/04-report/bkit-v2.0.5-finalization.report.md Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

popup-kay and others added 2 commits April 24, 2026 10:48

popup-kay merged commit edd54e5 into main Apr 24, 2026

popup-kay deleted the feature/v2.0.5-gemini-cli-v0.39.0-migration branch April 24, 2026 04:40

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feat: bkit v2.0.5 — Gemini CLI v0.39.0 migration + SessionStart slim + baseline runner repair - #23

feat: bkit v2.0.5 — Gemini CLI v0.39.0 migration + SessionStart slim + baseline runner repair#23
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feature/v2.0.5-gemini-cli-v0.39.0-migration

tomo-kay commented Apr 24, 2026

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tomo-kay commented Apr 24, 2026

Summary

What's New

🎯 Issue #25655 mitigation (no upstream change required)

🤖 Full Agent visibility via MCP

🏷 7 new feature flags for Gemini CLI v0.39.0

🛠 Baseline test runner repair

📚 SessionStart context migration to GEMINI.md

🆘 Backward compatibility

User Experience Changes

Breaking Changes

Migration Guide

Test Results

Files Changed

Related

Next Steps (separate cycles)

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