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----
-status: pending
-priority: p3
-issue_id: "001"
-tags: [architecture, source-checks]
-dependencies: []
----
-
-# Add source/common/ layer for cross-language source checks
-
-## Problem Statement
-
-`dry_run.rs` currently lives in `project/` but reads parsed source files (`project.parsed_files()`) to search for
-write/mutate keywords and `--dry-run` flag definitions. This is source analysis, not project structure inspection.
-However, the keywords it searches for (`--delete`, `--deploy`, `"dry-run"`) are language-agnostic -- they'd work on
-Python, Go, or Node source too.
-
-There's no `source/common/` layer for cross-language source checks. Today `source/` is organized as `source/rust/` and
-`source/python/` (empty). When a second cross-language source check emerges, extract `source/common/` and move `dry_run`
-there.
-
-## Findings
-
-- `dry_run.rs` uses `project.parsed_files()` for plain text search (no ast-grep, no language-specific patterns)
-- It's the only check that straddles the project/source boundary
-- Current placement in `project/` works but is technically wrong per the layer taxonomy
-- No other cross-language source checks exist yet -- YAGNI until there's a second one
-
-## Proposed Solutions
-
-1. **Create `source/common/` module** with its own `all_common_checks()` registry, collected for all languages
-2. Move `dry_run.rs` from `project/` to `source/common/`
-3. Update `all_source_checks()` in `source/mod.rs` to always include common checks regardless of language
-
-## Recommended Action
-
-_To be filled during triage._
-
-## Acceptance Criteria
-
-- [ ] `source/common/` module exists with `mod.rs` and `all_common_checks()`
-- [ ] `dry_run.rs` moved from `project/` to `source/common/`
-- [ ] `dry_run` layer metadata updated from `CheckLayer::Project` to `CheckLayer::Source`
-- [ ] Common checks collected in orchestration loop for all detected languages
-- [ ] All existing tests pass
-- [ ] Triggered by: a second cross-language source check being needed
-
-## Work Log
-
-| Date | Session | Notes |
-|------|---------|-------|
-| 2026-04-01 | v0.1 completion | Identified during layer audit. Deferred per YAGNI -- only one cross-language source check exists. |