Charter's README leads with a strong problem-first hook and product framing but has no conceptual grounding — it doesn't reference where the underlying context-engineering principles (token budgets, trigger-loaded context, minimalism) are documented in depth. ai-playbook's frameworks/context-engineering covers exactly this, and is a genuine theory-to-Charter's-implementation pair, not overlapping/redundant content.
Action: In README.md, add one line after the "How ADF works" section (~line 133) noting that ADF operationalizes the Context Engineering principles documented in Stackbilt's ai-playbook repo (github.com/Stackbilt-dev/ai-playbook), with a link. One sentence, additive only — do not restructure the file or touch anything else.
Category: docs
Risk: low
Charter's README leads with a strong problem-first hook and product framing but has no conceptual grounding — it doesn't reference where the underlying context-engineering principles (token budgets, trigger-loaded context, minimalism) are documented in depth. ai-playbook's frameworks/context-engineering covers exactly this, and is a genuine theory-to-Charter's-implementation pair, not overlapping/redundant content.
Action: In README.md, add one line after the "How ADF works" section (~line 133) noting that ADF operationalizes the Context Engineering principles documented in Stackbilt's ai-playbook repo (github.com/Stackbilt-dev/ai-playbook), with a link. One sentence, additive only — do not restructure the file or touch anything else.
Category: docs
Risk: low