polylith-workspace-inspection

Development

Show **brick × project usage** with `poly info` — which projects use which bricks, plus workspace counts. Use for "workspace overview", "which projects use X", "find orphaned bricks". For brick-to-brick dependencies, use `polylith-dependency-visualization`.

QUICK START

How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/DavidVujic/python-polylith/blob/HEAD/.agents/skills/polylith/polylith-workspace-inspection/SKILL.md

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Workspace Inspection Skill

Quick command

uv run poly info

Command prefix: If you do not know the package manager, list lock files with ls uv.lock poetry.lock pdm.lock 2>/dev/null (a pyproject.toml is always present, so it tells you nothing on its own). Use uv run poly (uv), poetry poly (poetry), pdm run poly (pdm), hatch run poly (hatch), or poly (activated venv). Examples below use uv run.

poly info vs poly deps:

poly info → brick × project (which project uses which brick).

poly deps → brick × brick (which brick uses which brick). Load polylith-dependency-visualization. 💡 A brick that is - in every project except development is orphaned in production — flag it for the user.

Command reference

Option	Default	Description
`--short`	`false`	Compact view — for workspaces where the full matrix doesn't fit.
`--save`	`false`	Persist the report to a file under the workspace's output dir.
`--group`	—	Show only projects in the named group(s) (comma-separated), defined in `[tool.polylith.projects.groups]`.

Examples

# Full matrix
uv run poly info

# Compact summary
uv run poly info --short

# Filter to a project group
uv run poly info --group hooks

Sample output

Workspace summary
projects: 6  components: 7  bases: 5  development: 1

  brick           consumer   message-api   aws lambda   fastapi   gcp fn   development
 ──────────────────────────────────────────────────────────────────────────────────────
  greeting           -            -             ✔          ✔        ✔          ✔
  kafka              ✔            ✔             -          -        -          ✔
  log                ✔            ✔             ✔          ✔        ✔          ✔
  greet_api          -            -             -          ✔        -          ✔
  message_api        -            ✔             -          -        -          ✔

Rows are bricks; columns are projects (rightmost = development).
✔ = the brick is used by that project; - = not used.
The development column should be ✔ for every brick (enforced by poly sync); a - there means a brick was created but isn't yet known to the development project.

Notes for the agent

poly info exits 0 — it's a report, not a gate.
For wide workspaces, prefer --short or --group <name>.
To turn this report into action: cross-reference orphans (only development = ✔) with poly deps --brick <name> to confirm nothing imports them, then propose deletion to the user.