pre-mortem
Pre-mortem risk analysis expert that classifies risks as Tigers, Paper Tigers, and Elephants to surface launch-blocking issues before they happen.
How do I install this agent skill?
npx skills add https://github.com/borghei/claude-skills --skill pre-mortemIs this agent skill safe to install?
- Gen Agent Trust Hubpass
The 'pre-mortem' skill is a project management tool for risk analysis. It includes a Python script that processes risk data locally using standard libraries. No malicious patterns, network activity, or sensitive data access were found.
- Socketpass
No alerts
- Snykpass
Risk: LOW · No issues
- ZeroLeakspass
Score: 93/100 · 2 sections analyzed
What does this agent skill do?
Pre-Mortem Risk Analysis Expert
Overview
A pre-mortem is a prospective hindsight exercise: imagine that your product has launched and failed, then work backward to identify why. This skill uses the Tiger / Paper Tiger / Elephant classification to categorize risks by type and urgency, ensuring launch-blocking issues are addressed before launch while avoiding wasted effort on unlikely risks.
Core Capabilities
- Prospective hindsight framing — "It is 14 days after launch, and we failed. Why?" surfaces specific, honest risks.
- Tiger / Paper Tiger / Elephant classification — separate real evidenced risks (Tigers) from anxiety (Paper Tigers) and unspoken concerns (Elephants).
- Urgency triage — tag each Tiger Launch-Blocking, Fast-Follow, or Track with owner and decision date.
- 6-phase facilitation — scene-setting, silent generation, cluster, classify, mitigate, address elephants in 60-90 minutes.
- Automated categorization —
risk_categorizer.pysummarizes distribution and flags elephants needing escalation.
When to Use
- Before committing significant resources to build (post-ideation, post-validation).
- Before a major launch, migration, or architectural change.
- When the team has "a bad feeling" they cannot articulate.
- When stakeholder confidence is high and you need to stress-test it.
Clarify First
Before running the pre-mortem, confirm these inputs. If any is unknown or vague, ASK — do not assume:
- The thing being stress-tested — the specific launch/build/migration that "failed 14 days after launch" (anchors the prospective-hindsight framing)
- Failure horizon — the date/milestone you imagine looking back from (a vague horizon produces vague risks)
- Who's in the room — the 4-8 participants and whether psychological safety exists (elephants only surface with candor and the right people)
Stop rule: ask only the 2-3 that most change the output. If the user says "just draft it," proceed and list your assumptions at the top of the artifact.
Quick Start
python3 scripts/risk_categorizer.py --demo # built-in sample (7 risks)
python3 scripts/risk_categorizer.py input.json # categorize your risks
python3 scripts/risk_categorizer.py input.json --format json
Each risk needs description, category (tiger/paper_tiger/elephant), evidence, and urgency (launch_blocking/fast_follow/track) for tigers. Document the session with assets/pre_mortem_template.md.
References
Load the reference that matches the task — keep this file lean and pull detail on demand:
- references/methodology-and-tools.md — the thought experiment, full Tiger/Paper Tiger/Elephant classification with examples, urgency table, the 6-phase facilitation script,
risk_categorizer.pyusage and flags, output formats, troubleshooting, success criteria, and bibliography. Read when running or scripting a session. - references/pre-mortem-guide.md — Gary Klein's origin and why pre-mortems work, when (and when not) to run one, deep classification criteria across domains, the facilitation timeline, and a worked SaaS launch example. Read for the theory and a full example.
- references/red-flags.md — 12 anti-patterns (mitigation theater, groupthink, vague risks, over-mitigated elephants, late pre-mortems, missing owners) with bad/good examples and one-line checks. Read before sharing pre-mortem output.
Scope & Limitations
In Scope: prospective hindsight using the "14 days after launch failure" framing; Tiger / Paper Tiger / Elephant classification with urgency levels; automated elephant escalation detection; risk registry generation; facilitation methodology for in-person and remote teams.
Out of Scope: ongoing risk management and tracking (see senior-pm/risk_matrix_analyzer.py); quantitative probability/impact scoring (senior-pm/); product discovery and hypothesis validation (brainstorm-experiments/); technical architecture risk assessment (engineering/ skills).
Important Caveats: most effective with 4-8 participants; the elephant escalation keyword check is a heuristic; pre-mortems complement, not replace, assumption mapping (identify-assumptions/); psychological safety is a prerequisite.
Integration Points
| Integration | Direction | Description |
|---|---|---|
brainstorm-ideas/ | Receives from | Ideas that passed initial validation are subject to pre-mortem before full build |
brainstorm-experiments/ | Receives from | Post-experiment, pre-mortem stress-tests the build decision |
identify-assumptions/ | Bidirectional | Launch-blocking tigers may surface new assumptions; elephants often reveal avoided assumptions |
execution/create-prd/ | Feeds into | Tiger mitigations become PRD risk sections and assumption validation plans |
senior-pm/ | Feeds into | Launch-blocking tigers escalate into portfolio risk registers via risk_matrix_analyzer.py |
scrum-master/ | Feeds into | Fast-follow tigers become sprint backlog items with mitigation-focused stories |
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/borghei/claude-skills/pre-mortem">View pre-mortem on skillZs</a>