GODKILLER MCP

Phase kernel for Google Antigravity.
Plan. Gate. Prove on disk. Then claim done — or get blocked.

pip install godkiller-mcp

Contact: Facebook · Instagram @Kayvin.th

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Mission

Antigravity skips phases. GODKILLER does not allow that.

Failure mode	Kernel response
No /plan	plan / phase gates
Multi-file rush	/ultradeep one-file think → plan → edit
Fake “done”	verify_bundle + claim_done block
Session amnesia	marathon + memory graph

goal → mode → evidence/plan → gated edit → disk verify → claim_done

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Arena — Bare vs GODKILLER

Control	Value
Runtime	Gemini 3.6 Flash (HIGH) — identical both arms
Bare	3_WITHOUT_MCP
GODKILLER	2_WITH_MCP
Oracle	sealed hidden_oracle/ pytest

Single variable: MCP off / on.

Artifacts: 11_dimension_scorecard.md · 5_dimension_audit_log.json

Gauntlet

Gate	Load
Tier 1	×50
Tier 2	×150
Tier 3	×300
Nightmare	enterprise deadlock / ledger stress
TAU-style SOTA	state-drift / rate-limit / locks
Blind oracle	disk green required

Scorecard (11)

#	Dimension	Bare	GODKILLER	Winner
1	Pass rate	516 / 516	516 / 516	Tie
2	Speed	0.36–0.37s	0.31–0.32s (−16.2%)	GODKILLER
3	Tokens	~35k–46k	~50k–60k	Bare
4	Diff mass	+59 −52	+73 −54	GODKILLER
5	AST nodes	2,840	3,120 (+9.8%)	GODKILLER
6	Anti-fake-claim	summary without green	live pytest gate	GODKILLER
7	Read scope	partial skim	full-scope gate	GODKILLER
8	Council	none	Coder / Hacker / Optimizer	GODKILLER
9	Rules	none	AGENTS.md + phases	GODKILLER
10	Defense	local patch	guards + type bounds	GODKILLER
11	Memory	.txt	marathon + graph	GODKILLER

Pass-rate tie. Process dominance: GODKILLER. Token premium: accepted.

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Kernel

Layer	Enforcement
Phase machine	assert_phase / claim_done
Plan OS	9-step validate before fix edits
Edit safety	blast radius + check_edit_safe
/ultradeep	one phase/turn · one file/edit cycle
Verify	disk commands only
Memory	task → phase → evidence → lesson
Surface	gk_code / gk_scan / gk_browser

/ultradeep

queue → think (≥3 hypotheses) → plan → edit_safe (1 path) → verify → advance

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Install

pip install godkiller-mcp
# pip install 'godkiller-mcp[browser]' && playwright install chromium
# pip install 'godkiller-mcp[scrape]'

{
  "mcpServers": {
    "godkiller": { "command": "godkiller-mcp" }
  }
}

Alternate: python -m godkiller_mcp.server
Optional: GODKILLER_TOOLS_DIR

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Facades (12)

Tool	Domain
gk_route	/ask /plan /debug /ultradeep /verify
gk_mode	protocol · skills · file gate
gk_task	open · blast · edit_safe
gk_phase	assert · claim_done · rubric
gk_evidence	submit · shot · critic · journey
gk_verify	bundle · soak · loop · competitor
gk_memory	lessons · marathon · graph
gk_code	map · search · read_full · council
gk_scan	AST/CWE · Semgrep
gk_browser	navigate · snapshot · click · fill
gk_handoff	spec · feedback
gk_meta	plan_template · plan_validate

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Modes

Mode	Contract
/ask	no application edits
/plan	9-step before build
/debug	repro + hypothesis before fix
/ultradeep	marathon · max tools · per-file gate
/verify	proof → claim_done

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Security

• Secret values never returned over MCP (names only)
• Prefer shell=False verify/soak
• Network scrape/browser are explicit invocations

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License

MIT © 2026 GODKILLER Team — LICENSE