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Get Started Free →Capture a reusable learning from completed work so future similar work is easier. Use when the user says 'save this learning', 'capture this insight', or finishes something tricky. Also use proactively after non-routine work. Not for recording a *decision* and its rationale; use `decision-log`.
.claude/skills/davekilleen-save-insight/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-08 | ✗→✓ | ▲ Improved | -25% | 0% |
| case-09 | ✗→✓ | ▲ Improved | 8% | 0% |
| case-10 | ✗→✓ | ▲ Improved | -37% | 0% |
| case-11 | ✗→✓ | ▲ Improved | -34% | 0% |
| case-14 | ✗→✓ | ▲ Improved | 31% | 0% |
Capture what you learned from completing work. This is the "compound" step—making future similar work easier.
$WORK_COMPLETED: What did you just complete? (project milestone, tricky problem, meeting, workflow improvement, etc.)
Ask the user (or extract from recent work context):
Store in: 06-Resources/Learnings/[Category]_Learnings.md
Categories:
Working_Preferences - How you like to work, communication style, tool preferencesMistake_Patterns - Common errors to avoid, with triggers and correctionsCreate new category files as needed for domain-specific learnings.
Append to the appropriate file:
markdown--- ## [Short Title] — [Date] **Context:** [1 sentence on what you were doing] **Challenge:** [What was tricky or non-obvious] **What Worked:** [The approach that succeeded] **Key Insight:** > [The memorable takeaway—something you'd tell past-you] **See Also:** [Related notes if any]
If the learning relates to:
> "The palest ink is better than the best memory." — Chinese proverb
This isn't documentation for others—it's a gift to future-you. Be specific. Include the gotcha. Make it searchable.
Update System/usage_log.md to mark learning capture as used.
Analytics (Silent):
Call track_event with event_name insight_saved and properties:
This only fires if the user has opted into analytics. No action needed if it returns "analytics_disabled".
Other measured skills in the registry, with their headline benchmark lift.