Keep hard-won fixes from becoming repeat mistakes.
Preserves the hard-to-recover reasoning behind one verified solution as a discoverable repository learning.
When to use it
Use after solving and verifying a problem when its lasting lesson is not already recoverable from the implementation or existing documentation.
Give it a solved project problem; it evaluates whether to document the lesson, with limited consent and selection questions unless non-interactive mode is requested.
What you provide
The bundled documentation-claim validator runs with Python 3 and uses only the standard library.
This skill
local agent session logs
Reads local agent session history
per-run scratch files
Writes temporary research files