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CRAP (Change Risk Anti-Patterns) combines cyclomatic complexity with test coverage: cc^2 * (1 - cov)^3 + cc. It is computed at output time from the existing complexity and coverage data, so no analysis types change. - JSON: metrics.crap is a number with coverage data and null without it, so consumers can parse the key unconditionally. - Terminal and LLM markdown output show it next to coverage. - [crap].coverage_source selects direct (default) or transitive coverage.
This was referenced Oct 12, 2026
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This was referenced Oct 13, 2026
Score each function's editability per model tier (small to frontier) from complexity, nesting, length, coverage, context tokens and ripple, with ranked improvement actions. Opt-in via [llm_editability].
Lower LLM editability when LLM co-authored edits keep getting reworked: repeated recent LLM edits, fixes or reverts after them, and bursts of conventional fixes per scope (or per file for scope-less fix: commits). Older LLM edits never fixed or reverted add a small, capped bonus. Agents are detected from Co-authored-by trailers and Generated-with footers; configure via [llm_editability.churn].
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Reject windows above 100 years so date arithmetic cannot panic, and carry the earlier editability review fixes onto this branch.
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Summary
Detect LLM-co-authored commits (
Co-authored-bytrailers and "Generated with" footers; built-in agent globs, extendable in config) and score how LLM edits to each function hold up. Only recent commits count (default 14-day window):This reverts commit <hash>line, or landing shortly after one),fix(scope):, or by file for scope-lessfix:commits.These signals add up to a
reworkfeature that lowers the score and adds an advice action. Older LLM edits that were never fixed or reverted add a small, capped bonus. Commit facts come from the existing repo-wide history walk, so there is no extra git pass. Configure with[llm_editability.churn].Uses
git2trailer parsing,git-conventional, andglobset.This is PR 3 of 5. Next: topic matching (#151).
Test plan
llm_churn_integration_test: builds a real git repo fixture with agent trailers and backdated commits (repo-localcore.hooksPath, no global config changes), checks per-function churn via the git provider and viadebtmap analyze --format jsoncargo test --bin debtmap,output_validation_testNot yet done
[llm_editability.churn]section (window, agents, proven-edit bonus) and the churn fields in the JSON/markdown output.How to stack these
These pull requests target
master. From a clone ofiepathos/debtmap, link them bottom to top, then merge the stack:gh stack linkrecords the stack on GitHub.gh stack mergemerges that stack in one step. Pass a pull request number to stop at that pull request. Order: CRAP scores (#148), editability (#149), churn (#150), topics (#151), content reverts (#152).