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create-experiment

Thin compatibility entrypoint for creating a new Harness FME experiment. Invokes manage-experiments' Create experiment flow directly - same scope, parent/environment resolution, hypothesis, metrics, treatments, window, and rule - and returns the created experiment id plus verification. Use when asked to create an experiment, set up an A/B test, or design a new experiment. Do NOT use for updating, pausing, resuming, completing, archiving, or deleting an experiment (manage-experiments), or for explaining results (review-experiment-results). Trigger phrases: create experiment, set up an A/B test, design an experiment, launch a test, new experiment for X.

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SKILL.md
Quality
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Create Experiment

Compatibility entrypoint kept for direct /create-experiment invocation. This skill does not duplicate any workflow - it hands the entire creation flow to manage-experiments's Create experiment section and returns once that flow completes.

Tools

Performs no operations of its own; it uses the operations of manage-experiments' Create experiment flow, named in tool-map.md.

Instructions

Step 1: Delegate

Read manage-experiments/SKILL.md and follow its Phase 1: Establish scope and Create experiment section (Steps 1-8) exactly as written, using the current request's scope (org/project), parent flag + environment, hypothesis, metrics, treatments, window (startAt/endAt), and rule. Do not re-derive or re-interpret any of that section's logic here - this skill has no independent instructions for resolving treatments, choosing metrics, or drafting the payload; it only exists so /create-experiment remains a valid invocation.

If the tool interface you're running under can't follow a markdown link to load another skill's file on demand, read skills/fme/manage-experiments/SKILL.md directly (same repo, relative path) and proceed the same way.

Step 2: Return the result

Once manage-experiments' Step 8 (Verify) completes, report the created experiment's id, status, and the verified fields (baseline/comparison treatments, key/supporting metrics, rule) back to the user. Don't add a second verification pass - manage-experiments' Step 8 is authoritative.

Examples

  • "Create an experiment on the new-checkout flag" → delegate to manage-experiments Create flow, return created id
  • "Set up an A/B test for the pricing page" → same delegation
  • "Pause experiment pricing_test_2" → not this skill; route to manage-experiments (Update)
  • "Did the checkout experiment win?" → not this skill; route to review-experiment-results

Performance Notes

  • No independent tool calls: every MCP/CLI operation happens inside the delegated manage-experiments flow, so there's no duplicate scope resolution or double-verification to optimize away here.

Troubleshooting

IssueResolution
User asks to update/pause/resume/complete/archive/delete an existing experimentRoute to manage-experiments (Update/Delete), not this skill
User asks about results, winner, or significanceRoute to review-experiment-results
manage-experiments' Create flow stops on a missing decision (hypothesis, treatments, metrics)Surface that stop to the user here too - don't guess on its behalf
Delegated flow fails partway (e.g. 404 on parent, 409 duplicate name)Report the error as manage-experiments' Troubleshooting table describes; don't retry with invented values
Repository

harness/harness-ai

Path

plugins/claude/skills/create-experiment/SKILL.md

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