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Agent skill

Polylith Migrate Detect Circular Imports

by DavidVujic in DavidVujic/python-polylith

[Internal sub-skill of polylith-migrate-orchestrator. An agent skill from DavidVujic/python-polylith.

MITAuto-check passed

Install Polylith Migrate Detect Circular Imports

skills CLI
$ npx skills add DavidVujic/python-polylith --skill polylith-migrate-detect-circular-imports -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install DavidVujic/python-polylith polylith-migrate-detect-circular-imports --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/DavidVujic/python-polylith.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/polylith/migrate-project/polylith-migrate-detect-circular-imports .claude/skills/polylith-migrate-detect-circular-imports && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
polylith-migrate-detect-circular-imports
GitHub stars
554
Token cost
~580 tokens
SKILL.md length
196 words
Files
1
Skills in repo
37
Repo updated
First seen
Licence
MIT

At a glance

[Internal sub-skill of polylith-migrate-orchestrator. An agent skill from DavidVujic/python-polylith.

  • Works in 2 steps: Analyze the import graph → Report circular imports
  • SKILL.md covers Goal, Inputs, Steps and Output, plus 2 more sections
  • Calls git

What it does

Polylith Migrate Detect Circular Imports is an agent skill from DavidVujic/python-polylith. [Internal sub-skill of polylith-migrate-orchestrator. Do not load directly — load polylith-migrate-orchestrator first, which drives all phases.] Detect and report circular imports introduced by the namespace migration.

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Tooling support for the Polylith Architecture in Python. The licence is MIT.

Example prompts

  • “/polylith-migrate-detect-circular-imports”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Analyze the import graph
  2. Report circular imports

What it can do on your machine

Read from SKILL.md and the folder at commit a7a80f2. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Polylith Migrate Detect Circular Imports loads about 580 tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 196 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~66
When it runs · the whole SKILL.md, loaded when a task matches
~580

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from DavidVujic/python-polylith at commit a7a80f2, republished under its MIT licence (© DavidVujic). 196 words, ~580 tokens.

Download SKILL.mdSave it as .claude/skills/polylith-migrate-detect-circular-imports/SKILL.md (or your agent's skills folder).
name
polylith-migrate-detect-circular-imports
description
[Internal sub-skill of `polylith-migrate-orchestrator`. Do not load directly — load `polylith-migrate-orchestrator` first, which drives all phases.] Detect and report circular imports introduced by the namespace migration.

Skill: polylith-migrate-detect-circular-imports

⛓ Conditional phase (4b). Runs only when SHIM_STRATEGY=shim (chosen in polylith-migrate-analyze-imports). On the shimless path this phase is skipped — a pure namespace rename introduces no base↔shim cycles. See the polylith-migrate-orchestrator workflow.

Goal

Detect and report circular imports introduced by the namespace migration, particularly between the new base location and the compatibility shim.

Inputs

  • Project name (from migration/<project-name>/state.md)
  • Original namespace (from migration/<project-name>/state.md)
  • New namespace (from migration/<project-name>/state.md)
  • Import updates report (from migration/<project-name>/import_updates.md)

Steps

1. Analyze the import graph
  1. Manually inspect the import graph to identify circular dependencies:
    • Between the new base location (bases/${TARGET_TOP_NS}/${INITIAL_BASE_NAME}/) and the compatibility shim (projects/${PROJECT}/${ORIG_TOP_NS}/__init__.py)
    • Within the new base location itself
2. Report circular imports
  1. Record all circular import chains in migration/${PROJECT}/circular_imports.md.
  2. For each circular import chain, document:
    • The files involved (use full paths like bases/${TARGET_TOP_NS}/${INITIAL_BASE_NAME}/module.py)
    • The import statements causing the circularity
    • Suggested resolution steps

Output

  • A report file: migration/<project-name>/circular_imports.md listing all circular import chains

Verify

  1. Confirm that migration/<project-name>/circular_imports.md exists.
  2. Verify that the report includes:
    • A list of circular import chains
    • The files involved in each chain
    • Suggested resolution steps

Commit

bash
git add migration/${PROJECT}/circular_imports.md
git commit -m "migrate(${PROJECT}): phase <N> — detect-circular-imports"

<N> is this phase's number from the polylith-migrate-orchestrator table (the single source of truth) — do not hardcode it.

© DavidVujic, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/polylith/migrate-project/polylith-migrate-detect-circular-imports of DavidVujic/python-polylith.

Open the folder on GitHubat commit a7a80f2

Compare with similar skills

Polylith Migrate Detect Circular Imports next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Polylith Migrate Detect Circular Imports compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Polylith Migrate Detect Circular Imports this skillDavidVujic/python-polylith554—~580Automated safety check: PassMIT
Migrate Internal Package into GhostTryGhost/Ghost56k—~3.8kAutomated safety check: PassMIT
Reversible MigrationJuliusBrussee/caveman111k1 repos~196Automated safety check: PassApache-2.0
Importasgeirtj/system_prompts_leaks69k—~3.5kAutomated safety check: PassCC0-1.0
Database Migrationsaffaan-m/ECC276k4 repos~3kAutomated safety check: PassMIT
Database Migrationsaffaan-m/ECC276k1 repos~2.4kAutomated safety check: PassMIT

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Questions about Polylith Migrate Detect Circular Imports

What does Polylith Migrate Detect Circular Imports do?

[Internal sub-skill of polylith-migrate-orchestrator. An agent skill from DavidVujic/python-polylith. Polylith Migrate Detect Circular Imports is an agent skill from DavidVujic/python-polylith. [Internal sub-skill of polylith-migrate-orchestrator.

How do I install Polylith Migrate Detect Circular Imports in Claude Code?

Run `npx skills add DavidVujic/python-polylith --skill polylith-migrate-detect-circular-imports -a claude-code`. Or copy the skill folder (.agents/skills/polylith/migrate-project/polylith-migrate-detect-circular-imports in DavidVujic/python-polylith) into .claude/skills/polylith-migrate-detect-circular-imports in your project. Claude Code loads it when a task matches its description.

How do I install Polylith Migrate Detect Circular Imports in Codex?

Run `npx skills add DavidVujic/python-polylith --skill polylith-migrate-detect-circular-imports -a codex`. Or copy the skill folder (.agents/skills/polylith/migrate-project/polylith-migrate-detect-circular-imports in DavidVujic/python-polylith) into .agents/skills/polylith-migrate-detect-circular-imports in your project. Codex loads it when a task matches its description.

Can I use Polylith Migrate Detect Circular Imports in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add DavidVujic/python-polylith --skill polylith-migrate-detect-circular-imports -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/polylith-migrate-detect-circular-imports, .gemini/skills/polylith-migrate-detect-circular-imports, .github/skills/polylith-migrate-detect-circular-imports and .opencode/skills/polylith-migrate-detect-circular-imports in your project.

What does Polylith Migrate Detect Circular Imports need to run?

Going by SKILL.md and its folder, Polylith Migrate Detect Circular Imports needs the command-line tools its instructions call (git).

Does Polylith Migrate Detect Circular Imports access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Polylith Migrate Detect Circular Imports safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Polylith Migrate Detect Circular Imports use?

Polylith Migrate Detect Circular Imports is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Polylith Migrate Detect Circular Imports use?

About 580 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Polylith Migrate Detect Circular Imports?

Skills that share tags, products or a category with Polylith Migrate Detect Circular Imports: Migrate Internal Package into Ghost (TryGhost/Ghost, 56k stars), Reversible Migration (JuliusBrussee/caveman, 111k stars), Import (asgeirtj/system_prompts_leaks, 69k stars) and Database Migrations (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Polylith Migrate Detect Circular Imports?

DavidVujic (a GitHub user) maintains it in DavidVujic/python-polylith, which has 554 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on October 4, 2026.

Source: DavidVujic/python-polylith on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.