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Summer Engine MCP + CLI: agents build and ship games

At a glance

Summer Engine (Oct 16) ships hosted MCP (https://mcp.summerengine.com/mcp), local `summer mcp`, and a full CLI so Claude Code/Codex/Cursor can generate assets, drive the engine, publish store pages, and pull analytics—`summer_search`/`ops search` map plain language to exact ops; CLI-only setup via skills with `--dry-run`/`--json` for safe agent scripting. This workflow is listed under MCP, game-dev, CLI, coding-agents, assets.

Agents / tools
Summer Engine, Summer MCP, Summer CLI, Claude Code, Codex, Cursor

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Prompt excerpt

Add Summer hosted MCP, then ask: make three sword-clash SFX choices, pick one, and wire it into the open Summer Engine project with --dry-run first.
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productMCP

Kerno: local runtime QA that verifies agent changes against your stack

MCP-connected runtime QA maps critical flows and entry points, then re-tests the blast radius of each Claude Code/Cursor/Codex change against live Postgres/Kafka/APIs/MCP tools—contracts, authz, OWASP, errors—before merge, with self-heal when behavior changes on purpose.

KernoClaude CodeCursor+3
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hnagent-memory

MuscleMemory: test-gated procedural memory for coding agents

Open-source local procedural memory that learns only after tests pass, then hands Claude Code/Codex/Cursor a short verified skill note on similar tasks (reported token/tool cuts in published benchmarks).

MuscleMemoryClaude CodeCodex+2
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othercontext-compression

SuperCompress: query-aware context cut for coding agents

SuperCompress v2 compresses context against the query (keeps answer-critical lines verbatim): ~64% mean cut on their B5 coding-agent suite with 24/24 evidence-retention passes; MCP/plugin for Cursor/Claude Code/Codex plus hosted API and open weights.

SuperCompressClaude CodeCursor+2
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productMCP

Pensieve: local MCP index so agents stop grepping the whole disk

HN (Ted Haley): Pensieve locally indexes code, docs, and past agent sessions (watches repos/worktrees/uncommitted edits), exposes MCP search so Claude Code/Codex/Cursor get the few relevant passages with file:line instead of multi-round grep; Qwen3-Embedding-0.6B + SQLite/trigram + turbovec; macOS-focused OSS.

PensieveClaude CodeCodex+2
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