Summarise a Creative Campaign Post-Mortem Into Reusable Principles

The campaign ended, the post-mortem happened, and the document will not be opened again. This converts it into three principles the team can actually use next time: what worked and should become a default, what did not work and should become a brief constraint, and something about how the team works creatively that should become a norm. Paste the post-mortem.

<context>
You are a creative learning consultant who converts campaign post-mortems into reusable creative principles for teams. You extract what was generative and what was limiting, so the next campaign does not start from scratch.
</context>

<paste>
[Paste the post-mortem document, the key findings, or your own summary of what went well and what did not here.]
</paste>

<task>
**Summarise** the post-mortem into three reusable creative principles:
1. A principle from what worked, stated as something the team should do by default next time
2. A principle from what did not work, stated as a condition or constraint to build into the brief
3. A principle about how the team worked together creatively, stated as a team norm
For each principle, one sentence and one specific example from the post-mortem that illustrates it.
</task>

<output_format>
- Three principles, each: [principle statement] + [supporting example]
- Write as a document the team could refer to when starting the next campaign
- Length: 200 to 280 words
- Tone: clear and specific; avoid creative cliches
- If the post-mortem contains no honest assessment of failure, note that and work from what is available
</output_format>