agentic-tdd
Test-driven development for behaviour a unit test cannot reach, by writing the expectation…
Turn a user journey you just clicked through into a saved regression check that re-runs deterministically, with no model in the loop and no test code to write. Use when you have driven the same flow twice, when the user wants regression coverage without a Playwright suite, when
$ npx -y skills add reticlehq/reticle --skill replay-user-flows --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
/replay-user-flowsContext preview
The summary Claude sees to decide when to auto-load this skill.
Turn a user journey you just clicked through into a saved regression check that re-runs deterministically, with no model in the loop and no test code to write. Use when you have driven the same flow twice, when the user wants regression coverage without a Playwright suite, when
name: replay-user-flows description: Turn a user journey you just clicked through into a saved regression check that re-runs deterministically, with no model in the loop and no test code to write. Use when you have driven the same flow twice, when the user wants regression coverage without a Playwright suite, when a refactor needs proving against every existing journey, or when re-verifying by hand is costing a full drive every time. license: Apache-2.0 metadata: version: 3.7.0 homepage: https://www.reticle.sh repository: https://github.com/reticlehq/reticle
Exploring an app to find a journey is the expensive part, and re-driving it with a model pays that cost again on every change. **Reticle flows** pay it once: the journey is saved with semantic anchors and replayed deterministically afterwards.
Needs Reticle wired in the project. Not there? `RETICLE_INSTALL_SOURCE=npx_skill npx @reticlehq/server@latest init`, then the [`install-and-verify`](https://github.com/reticlehq/reticle/blob/main/skills/install-and-verify/SKILL.md) skill.
You do not have to ask. **A drive is saved as a flow automatically** when the session ends, written to `.reticle/flows/`. **Commit it**: any agent on the repo can then replay it.
What decides whether it is worth committing is how you drove it. A step keeps a consequence only when you declared one, so drive the golden path like this:
reticle_act_and_wait({ sessionId, ref, action: "click", until: { kind: "signal", name: "task:created" } })That step replays as a test. A bare `reticle_act` saves a click with nothing to prove, and replays green through any regression.
To name a flow deliberately rather than take the automatic one, `reticle_record` and `reticle_flow_save` do it through `reticle_run { tool, args }`. Neither is advertised, and neither needs to be: `reticle_run` is on the default surface and dispatches to any registered tool by name. `RETICLE_ADVERTISE_ALL_TOOLS=1` advertises them outright instead, which suits a suite that calls by name rather than a running agent.
Annotate the business outcome, not just the clicks, so a replay proves the journey _achieved_ something. Extended surface, like the two above:
reticle_run({ tool: "reticle_annotate", sessionId, args: { flow: "create-task", kind: "intent", text: "create a task and see it in the list" } })
reticle_run({ tool: "reticle_annotate", sessionId, args: { flow: "create-task", kind: "success-state", signal: "task:created" } })**You do not need to add `data-testid` first.** A step whose element has no testid is anchored on its component and source location automatically, and a testid-preserving refactor still replays green.
reticle_verify({ sessionId, action: "change", files: ["src/tasks/TaskList.tsx"] })That replays the flows covering those files. To replay one named flow directly, `reticle_flow_replay` is reached through `reticle_run`.
Three statuses, and the failures are legible rather than blind:
| status | means | next | | --- | --- | --- | | `ok` | every anchor resolved, every expectation held | done | | `drift` | an anchor missed: a renamed testid, a signal that never fired | read `decision.nextAction`; it names the file:line and the closest surviving anchor | | `error` | the flow file is missing or invalid, or a step failed at runtime | fix from the error envelope's failed step |
On drift, `reticle_verify { action: "heal" }` proposes the nearest-match rebind so flows do not rot. Apply it when the rename was intentional; treat it as a finding when it was not.
reticle_verify({ sessionId, action: "flows" })
// → { status, total, passed, failed, failures: [{ flow, verdict, whatChanged, whereInSource, nextAction }] }One call, every saved flow, no model per flow. Only failures carry detail, so a green suite is cheap to check. Build → `flow_verify` → fix from each `nextAction` → repeat is the regression loop, and it is the point of recording in the first place.
On a large suite, replaying everything after a one-file edit is waste. Hand it the diff instead:
reticle_verify({ sessionId, action: "change", since: "HEAD~1" })It works out which saved flows cover the files you edited and replays only those. Give it a git ref or the file list. Use this in the inner loop and `flow_verify` before you ship: the narrow one is fast, the whole one is the guarantee.
reticle_run({ tool: "reticle_domain", sessionId }) // not advertised, one hop away
// → { flowCount, coverage: { asserted, presenceOnly, assertionFree }, gaps: { declaredUntestedSignals, … } }A recorded flow that asserts nothing replays green through any regression: it proves the clicks still resolve, not that the app still works. Check this after a recording session: anything landing in `assertionFree` needs an `annotate` pass with a `success-state`, or it is decoration.
A journey you will run once is cheaper to drive with `reticle_act_and_wait` and forget. Record the flows that define the product (the ones a regression in would be a bad day) and leave exploratory drives unsaved. A suite of forty half-meant flows costs more attention than it returns.
A replay reports what happened. `drift` is not a pass, and healing a flow to make it green when the app genuinely broke is the one thing that makes the whole suite worthless. If the rename was not intentional, the drift **is** the finding: report it with the `whereInSource` pointer.
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Full flow reference, one page: `curl https://docs.reticle.sh/flows.md`. Index of everything: `curl https://docs.reticle.sh/llms.txt`.
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Repo: reticlehq/reticle
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