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Reliability · Version 1.0.0 · Reviewed 2026-08-02

Degraded Mode Designer

Reduce production risk in mode definition and entry and exit triggers with evidence, explicit trade-offs, and a verification plan.

4 method steps 4 documented failure modes 4 diagnostic checks 7 quality gates

Defines what the product still does when key dependencies are unavailable, and how to enter that mode.

₹149 one-time

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What this skill helps you do

  • Mode definition
  • Entry and exit triggers
  • Customer communication

How Degraded Mode Designer works

You provide

Impact window, telemetry, and dependency state

It inspects

Saturation and blast radius behind mode definition

It decides

A entry and exit triggers plan that stabilizes before diagnosing

You verify

Detect, mitigate, and resolve times recorded separately

What it checks first

Degraded Mode Designer defines what the product still does when key dependencies are unavailable, and how to enter that mode. Use it when the work involves Mode definition, Entry and exit triggers, Customer communication.

  1. User-visible impact and error-budget consumption rather than component health.
  2. Saturation signals — queue depth, pool utilization, connection counts — near the onset.
  3. Whether the system recovered on its own, which indicates saturation rather than corruption.
  4. The blast radius and what boundary should have contained it.

Failure modes it recognizes

  • Retry amplification turning a partial failure into a total outage.
  • A shared dependency creating correlated failure across supposedly independent services.
  • Slow resource exhaustion invisible until a hard limit is crossed.
  • A rollback blocked by an incompatible migration.

Answers it will reject

  • Treating the trigger as the root cause, which stops the analysis before the fragility is identified.
  • Adding a runbook step where a boundary would remove the failure mode.
  • Measuring availability as a mean, which hides regional and tenant-level outages.

Decision rules it applies

  • Stabilize user impact before completing diagnosis.
  • Bound every retry with a budget, jitter, and a circuit breaker.
  • Prefer removing a failure mode over detecting it faster.

Evidence it asks for

  • Record time-to-detect, time-to-mitigate, and time-to-resolve separately.
  • Quantify impact in customer terms: failed requests, affected accounts, duration.
  • Verify recovery with the same signal that detected the failure.

The method inside

  1. Turn mode definition into explicit functional requirements and quality-attribute constraints.
  2. Model the critical path, state, trust, and failure boundaries that govern entry and exit triggers.
  3. Compare viable designs for customer communication against weighted constraints and operational ownership.
  4. Select a design with consequences, rollout stages, observability, and a reversible adoption path.

Deliverables

  • Mode definition assessment
  • Entry and exit triggers decision and action plan
  • Customer communication verification checklist

Evidence requirements

  • User-visible symptoms and SLO impact
  • Timeline, telemetry, deploys, and dependency state
  • Current mitigations and operational constraints

Quality gates

  • Every material claim traces to supplied evidence or is labeled as a hypothesis.
  • The response follows the declared deliverable contract.
  • No execution, access, measurement, or verification is invented.
  • Secrets and personal data are redacted rather than repeated.
  • The user receives a concrete independent verification step.
  • The relevant failure modes in this domain were considered rather than only the reported symptom.
  • No listed anti-pattern was recommended as a solution.

Example task

Input

When our recommendation and search services fail, the whole storefront becomes unusable. Design degraded modes.

Expected output

Decide the minimum viable product experience now rather than during an incident: browsing and checkout should survive without search or recommendations. Make entry automatic on a health signal and exit deliberate, and tell the user what is temporarily unavailable...

Boundaries and compatibility

Ideal for

  • Mode definition: produce a decision or artifact grounded in supplied evidence.
  • Entry and exit triggers: produce a decision or artifact grounded in supplied evidence.
  • Customer communication: produce a decision or artifact grounded in supplied evidence.

Out of scope

  • Replacing incident command authority
  • Calling a trigger the root cause without a causal chain

Agent compatibility

  • GitHub Copilot custom agents
  • Claude Agent Skills / SKILL.md
  • Any instruction-following chat model

Tool policy: Advisory by default. No tools are assumed. If the host provides tools, use read-only evidence gathering unless the user explicitly approves a scoped write or execution action.