Structured Log

Write structured entries to memory/YYYY-MM-DD.md instead of free-form text. This improves recall via memory_search.

When to Use

After any meaningful action:

• Made a decision or received a decision from the founder
• Discovered a new fact (via Exa, PostHog, web, conversation)
• Found an insight or pattern
• Completed a task with a result
• Updated a hypothesis

Entry Format

### HH:MM — [TYPE] Title

What happened (1-2 sentences).

**Facts:**
- concrete fact 1
- concrete fact 2

**Concepts:** keyword1, keyword2, keyword3
**Files:** path/to/file (if changed)

Types (TYPE)

Rules

1. Facts must be verifiable. "Signups = 0 for 7 days" (ok). "Seems low" (no).
2. Concepts are for search. Write keywords you'd use to find this entry later via memory_search. Include: names, products, metrics, topics.
3. Files — only if changed. List only files that were created or modified.
4. One entry = one topic. Don't mix a decision + tool finding in one entry.
5. Narrative < 50 words. Context goes in facts, not prose.

Promotion to MEMORY.md

A fact deserves promotion to MEMORY.md if:

• It changes understanding of wedge, ICP, constraint
• It's confirmed 2+ times from different sources
• It affects current strategy or hypothesis

On promotion — add to the appropriate MEMORY.md section and remove outdated info.

Example

### 14:30 — [TOOL] PostHog: 41% activation step failures

PostHog query revealed a high percentage of errors during the key activation step.

**Facts:**
- 41% of `primary_resource_action` events have `processingStatus=failed` (30d)
- Main errors: timeout on large inputs (above the documented size limit)
- Affects the `first_primary_resource_added -> primary_resource_processed` funnel stage

**Concepts:** activation-blocker, funnel-drop, PostHog, TTFV
**Files:** —