Tools

Every tool in the suite, in four groups. Each tool has its own documentation; this page links to it. Version numbers are left out on purpose: see each tool’s own page for the current release.

Code intelligence

Tool	What it does for you	Install	Docs
fledgling	SQL macros over DuckDB: find definitions, callers and code structure, and read git history, docs and past chat sessions.	pip install fledgling-mcp	docs
squackit	The MCP server and CLI that most users talk to. It wraps fledgling and pluckit with ranked search and session caching.	pip install squackit	docs
pluckit	“jQuery for source code”: select, view and change code with CSS selectors over the syntax tree.	pip install ast-pluckit	docs
duckeye	A terminal reader for documents, code and data files, with section and selector queries.	curl -fsSL https://raw.githubusercontent.com/teaguesterling/duckeye/main/install.sh | bash	docs

Workflow

Tool	What it does for you	Install	Docs
blq	Runs builds and tests, keeps the output, and lets you query the errors later without a re-run.	pip install "blq-cli[mcp]"	docs
jetsam	Git save, sync and ship as single steps. Each step shows a plan that you confirm first.	pip install jetsam-mcp	docs
kibitzer	Watches the agent’s tool calls, protects paths by mode, and suggests a structured tool in place of the shell.	pip install kibitzer	docs

Generation, memory and policy

Tool	What it does for you	Install	Docs
lackpy	Turns a plain-language request into a small, checked program and runs it with a local model.	pip install "lackpy[mcp]"	docs
agent-riggs	Memory across sessions: start-of-session briefings, recurring patterns, trust scores.	pip install agent-riggs	docs
umwelt	Agent permission policy written like CSS, compiled to SQLite. Other tools ask it what is allowed.	pip install "umwelt @ git+https://github.com/teaguesterling/umwelt"	docs
nsjail-python	A Python wrapper for Google’s nsjail sandbox.	pip install "nsjail-python[binary]"	docs

pip install umwelt installs a different project with the same name. Use the GitHub URL above.

DuckDB extensions

These are the foundation the Python tools stand on. Install them from inside DuckDB.

Extension	What it does for you	Install	Docs
sitting_duck	Query source-code syntax trees with SQL and CSS selectors, in 27 languages.	INSTALL sitting_duck FROM community;	docs
duck_tails	Git history, and files at any revision, as tables.	INSTALL duck_tails FROM community;	docs
duck_hunt	Parses test, build and CI logs from more than 100 tools into rows.	INSTALL duck_hunt FROM community;	docs

To install everything at once, follow Install.