Initial commit: AI conversation impact methodology and toolkit

CC0-licensed methodology for estimating the environmental and social
costs of AI conversations (20+ categories), plus a reusable toolkit
for automated impact tracking in Claude Code sessions.

tasks/01-clean-methodology.md

@@ -0,0 +1,24 @@
+# Task 1: Clean up methodology for external readers
+
+**Plan**: publish-methodology
+**Status**: DONE
+**Deliverable**: Revised `impact-methodology.md`
+
+## What to do
+
+1. Read `impact-methodology.md` fully.
+2. Remove or generalize references specific to this project (e.g.,
+   "scan-secrets.sh", specific session IDs, "our conversation").
+3. Add an introduction: what this document is, who it's for, how to use it.
+4. Ensure every estimate cites a source or is explicitly marked as
+   an assumption.
+5. Add a "limitations" section summarizing known gaps and low-confidence
+   areas.
+6. Structure for standalone reading — someone finding this document with
+   no context should be able to understand and use it.
+
+## Done when
+
+- The document reads as a standalone resource, not a project artifact.
+- A reader unfamiliar with this project could use it to estimate the
+  impact of their own AI usage.