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Symmetria
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Description: An intuitive and comprehensive framework for interacting with the symmetric group and its elements, built on a Rust backend for optimal performance.
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Repository: VascoSch92/symmetria · VascoSch92/symmetria-core
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Contributions: Creator & Maintainer
OpenHands
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Description: An open-source platform for AI software-engineering agents.
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Repository: OpenHands
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Contributions: Core contributor - 180+ merged pull requests on the agent SDK, 40+ on agent-canvas
- Parallel tool calls - the execution engine, a resource-lock manager to make concurrent tools safe, per-tool resource declarations, and the concurrency limit surfaced end-to-end in agent settings
- Subagents - file-based agent definitions in markdown + YAML frontmatter, built-in specialized agents, and the task tool set that replaced the delegate tool
- LLM profiles - a persisted profile store, the management API, cipher-encrypted secrets, and per-conversation model switching from the chat UI
- Conversation history tree - parent/child lineage, fork-from-event and navigation, exposed over HTTP and surfaced as branching a conversation from any message
- Prompt registry - typed prompt sections replacing the Jinja templates, guarded by a golden-snapshot test of the rendered system prompt
- Token-level streaming - over the agent-server WebSocket and rendered live in the chat
Ruff
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Description: An extremely fast Python linter and code formatter, written in Rust.
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Repository: astral-sh/ruff
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Contributions: 34 merged pull requests, in three areas
- Fix-safety auditing — documenting and re-classifying when an autofix can silently change behaviour:
RUF005,RUF007,RUF013,RUF017,RUF027,RUF028,RUF033,SIM103,SIM110,SIM112,SIM210,FLY002,D200 - Correctness fixes — #16080 argument ordering in
PLR1730's fix, #16550 starred expressions inFURB161, #16552 mixed-case hash names inS324 - Fewer false positives — #15980 exempt
sys.path += ...fromE402, #15988 leading underscores inN801, #16454 module-attribute names inA001
- Fix-safety auditing — documenting and re-classifying when an autofix can silently change behaviour:
Feature Engine
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Description: Feature engineering package with sklearn like functionality.
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Repository: feature-engine/feature_engine
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Contributions:
- feature-engine/feature_engine#806 - Implementation of a mean normalization scaling transformer



