snapshot_date	layer	repository	stars	license_metadata	last_push	mechanism	role	status
2026-08-03	context_selection	Aider-AI/aider	47909	Apache-2.0	2026-05-22	repo map with explicit token budget	smallest coding-context donor	shortlist
2026-08-03	context_selection	OpenHands/OpenHands	82995	MIT	2026-08-03	configurable conversation condenser	platform-first runtime	shortlist
2026-08-03	context_selection	continuedev/continue	35304	Apache-2.0	2026-08-03	codebase context and coding agent	IDE-oriented alternative	watch
2026-08-03	compression	microsoft/LLMLingua	6521	MIT	2026-04-08	prompt and context compression	prose/log ablation	shortlist
2026-08-03	serialization	toon-format/toon	25060	MIT	2026-08-02	compact JSON-like notation	tool-result ablation	shortlist
2026-08-03	gateway	BerriAI/litellm	55442	NOASSERTION	2026-08-03	gateway routing caching cost tracking	provider normalization	shortlist
2026-08-03	routing	lm-sys/RouteLLM	5293	Apache-2.0	2024-08-10	strong/weak model routing	research reference	watch
2026-08-03	routing	aurelio-labs/semantic-router	3771	MIT	2026-07-26	semantic intent routing	bounded router candidate	watch
2026-08-03	gateway	Portkey-AI/gateway	12634	MIT	2026-05-25	AI gateway routing guardrails	LiteLLM alternative	watch
2026-08-03	cache	zilliztech/GPTCache	8119	MIT	2025-07-11	semantic response cache	read-path reference	watch
2026-08-03	progressive_disclosure	agentskills/agentskills	23788	Apache-2.0	2026-07-10	three-stage progressive disclosure	portable skill contract	shortlist
2026-08-03	skills	anthropics/skills	166005	NONE_DETECTED	2026-07-24	public skill corpus	examples and packaging	watch
2026-08-03	skills	garrytan/gstack	126086	MIT	2026-07-15	task-routed skill suite	large skill-router reference	watch
2026-08-03	tools	PrefectHQ/fastmcp	27038	Apache-2.0	2026-08-03	MCP server/client framework	small dynamic tool surface	shortlist
2026-08-03	tools	cloudflare/mcp	695	Apache-2.0	2026-07-31	Code Mode search and execute	large API through two tools	shortlist
2026-08-03	tools	ComposioHQ/composio	29510	MIT	2026-08-03	tool search context management auth	large catalog comparator	shortlist
2026-08-03	observability	langfuse/langfuse	32435	NOASSERTION	2026-08-03	traces datasets evals cost accounting	default trace UI	shortlist
2026-08-03	observability	Arize-ai/phoenix	10875	NOASSERTION	2026-08-03	OpenTelemetry observability and eval	OTel-first alternative	shortlist
2026-08-03	observability	comet-ml/opik	21085	Apache-2.0	2026-08-03	traces experiments evals	integrated alternative	watch
2026-08-03	eval	promptfoo/promptfoo	23881	MIT	2026-08-03	declarative agent and prompt eval	light experiment runner	shortlist
2026-08-03	eval	SWE-bench/SWE-bench	5560	MIT	2026-07-27	real issue benchmark and verifier	credible scaled gate	shortlist
2026-08-03	eval	openai/evals	19097	NOASSERTION	2026-04-14	LLM eval framework and registry	general reference	watch