brainstorming-chaos-engineering

Adapted from bmad-method:bmad-brainstorming (MIT, © 2025 BMad Code, LLC). See THIRD_PARTY_NOTICES.md.

When to use

Use this skill when the team needs to surface systemic weaknesses by imagining controlled failure before real failure occurs. Typical triggers include:

• Preparing or expanding a risk register before a planning gate or milestone review
• A pre-mortem exercise at the start of a high-stakes sprint or project phase
• A resilience review of a process, integration, or dependency that has never been tested under adverse conditions
• A sponsor or auditor asking: "What happens if this fails?" and the team has no documented answer

Do not invoke for ideation of new features or product directions; this skill is diagnostic, not generative. Do not invoke when a root cause for an existing incident is already known; use Five Whys or Failure Analysis instead.

Summon the SME

Before facilitating, load the canonical Chaos Engineering reference to ground the session in established practice.

Reading the config. Check .pm-kit.config.json for the sourcesMode field:

• If sourcesMode is "online" (opt-in): fetch the URL stored at the key sources.chaosEngineering in vendor/pm-kit/sources-index.json using your available web-fetch capability. Do not name a specific tool — use whatever your runtime provides. Ground the facilitation in what you read. Do not fabricate quotations or page numbers.
• If sourcesMode is "offline" or the field is absent (the default): rely on your general knowledge of chaos engineering as defined by the Principles of Chaos Engineering community — specifically: define steady state, hypothesize that steady state continues, introduce real-world failure variables, and attempt to disprove the hypothesis. Cite the canonical URL from vendor/pm-kit/sources-index.json at key sources.chaosEngineering in the output. Do not fabricate quotations or page numbers.

In both cases, the URL to cite is https://principlesofchaos.org/.

Facilitation script

Walk the user through these steps in sequence. Do not skip steps or combine them.

Step 1 — Define steady state. Ask the user: "What does normal, successful operation look like for this plan or system?" Define at least two measurable indicators of steady state (e.g., "all sprints deliver 80% of committed story points," "integration layer responds within 2 seconds").

Step 2 — Hypothesize continuity. State the hypothesis explicitly: "We expect steady state to hold even if we introduce the following adverse conditions." Confirm the user understands this is the assumption to be stress-tested.

Step 3 — Generate failure variables. Ask: "What real-world events could disrupt steady state?" Prompt across categories:

• People — key contributor unavailable, sponsor change, team conflict
• Dependencies — third-party delay, vendor failure, integration breakage
• Scope — requirement reversal, compliance change, discovered technical debt
• Environment — budget cut, tooling outage, regulatory shift

Collect at least eight failure variables.

Step 4 — Probe the hypothesis. For each failure variable, ask: "If this happened, would steady state hold? What would break first? How quickly would the project recover?" Rate each as:

• Resilient — steady state would hold or recover within one sprint.
• Fragile — steady state would break and recovery is unclear.
• Unknown — the team cannot answer.

Step 5 — Prioritize fragilities. Rank fragile and unknown items by likelihood × impact. Identify the top three systemic weaknesses — the findings that most urgently require a mitigation plan.

Step 6 — Design recovery mechanisms. For each top weakness, propose at least one concrete change to the plan, process, or team structure that increases resilience. Each mechanism should be assignable to a role and time-bounded.

Step 7 — Output. Produce the completed analysis using the structure in TEMPLATE.md (sibling file). Fill every section. Leave no placeholder unfilled.

Step 8 — Save the artifact. Save the filled artifact to docs/pm-kit/outputs/brainstorming-chaos-engineering/<short-slug>.md. <short-slug> is a kebab-case ASCII slug (max 40 characters) derived from the plan or system being stress-tested. Confirm the final path with the user before writing. If the target file already exists, ask the user whether to overwrite, append a date suffix (e.g., -2026-04-20), or choose a different slug. The artifact must begin with the three-line provenance header below (preserved as HTML comments so they do not render):

<!-- Generated by agentic-pm-kit:brainstorming-chaos-engineering on YYYY-MM-DD -->
<!-- Languages: communication=<value>, output=<value> -->
<!-- Source mode: offline | online -->

Languages

The kit separates the language used for live agent–user dialogue from the language used in the saved artifact. Both values live in .pm-kit.config.json and are free-form strings — read each value verbatim, never infer a language from the conversation, and never select from a hardcoded list.

Facilitation dialogue. Speak to the user during facilitation in the language at language.communication. Use the string verbatim.

Filled artifact (saved TEMPLATE.md output). Produce the written artifact in the language at language.output. If language.output is absent or empty, fall back to language.communication.

Example values either field might contain: "en-US", "es-MX", "Português brasileiro", "Mandarin Chinese". Accept any string as given. This bifurcation is the normative pattern for every skill in the kit.

Acceptance gate

When the analysis is complete, point the user to CHECKLIST.md (sibling file) and ask them to verify each item. Remind them that the output must be marked PASS or FAIL. On FAIL, invite the user to return with specific notes so the facilitation can be resumed or corrected.