Fable Learning — Failure Lessons & Knowledge Synthesis Engine

Turn any engineering conversation, agent trajectory, or session realities into durable, reusable project knowledge saved in Failure-lessons/, agent-kernel rules, gbrain chunks, compound solution docs (docs/solutions/), and portable Playbooks.

$$\text{Session Realities} \xrightarrow{\text{Reality Mining}} \text{Failures, Fixes, Invariants, Tests} \xrightarrow{\text{Distillation & Rigor}} \text{Failure-lessons/ + agent-kernel + gbrain} \xrightarrow{\text{Evolution}} \text{Playbooks & Skills}$$

Mission

Mission Statement: Convert This Session Into Durable Project Learnings

This session contains engineering knowledge that should not disappear when the conversation ends.

Your task is to extract the reusable lessons from the work completed and persist them as durable project knowledge.

Do not produce a simple session summary.
Do not merely list what changed.
Convert failures, discoveries, corrections, architectural decisions, debugging insights, testing strategies, and implementation mistakes into reusable engineering lessons that future contributors and coding agents can act on.