click-path-audit
affaan-m/ecc
Trace button handlers through state changes to find bugs where functions cancel each other out or leave UI inconsistent.
What is click-path-audit?
Audits every user-facing button and touchpoint by tracing its handler's function calls in sequence to detect state interaction bugs—side effects that undo each other, race conditions, or final states that contradict the button's intent. Use after systematic debugging finds no bugs but users report broken buttons, or after refactoring shared state stores.
- Map state store actions and their side effects (what fields they set, reset, or modify)
- Trace each interactive handler's function calls in order to detect sequential undos and conflicting state changes
- Identify async race conditions where call resolution order affects final state
- Detect stale closures, dead code paths, and useEffect interference with button handlers
- Report each bug with severity, pattern type, trace of conflicting calls, and specific fix
How to install click-path-audit
npx skills add null --skill click-path-auditHow to use click-path-audit
- 1.Step 1: Map all state stores in scope—for each action/setter, document what fields it sets and what it resets as side effects (build a side-effect reference)
- 2.Step 2: For each interactive touchpoint (button, form submit, toggle), trace its handler's function calls in order, checking what state each call reads/writes and whether later calls undo earlier ones
- 3.Step 3: Check for bug patterns: sequential undo (call A sets X, call B resets X), async race conditions, stale closures, missing state transitions, dead code paths, and useEffect interference
- 4.Step 4: Report each bug found with touchpoint location, handler trace, expected vs. actual state, and specific fix
Use cases
- Button does nothing despite handler existing and functions working individually (e.g., 'New Email' button resets composeMode after setting it)
- After major refactor touching shared state stores—verify no actions now have conflicting side effects
- Before release on critical user flows to catch state interaction bugs systematic debugging misses
- When modifying a Zustand/Redux action—audit all callers to find unintended resets or side effects
- Debugging buttons that silently undo their own work or leave UI in inconsistent state
- Frontend engineers debugging mysterious button failures
- Teams using Zustand, Redux, or React Context for shared state
- Code reviewers checking for state interaction bugs after refactors
- QA or developers investigating user reports of 'broken buttons' with no error logs
click-path-audit FAQ
Systematic debugging checks if functions exist, crash, or return correct types. Click-path audit checks if the final UI state matches the button's intent after all side effects execute—it catches bugs where individual functions work but cancel each other out.
No. Scope it: full app audit before launch or after major refactor (split across parallel agents per page), single-page audit after building a new page, or store-focused audit after modifying a Zustand action.
Common fixes: reorder function calls so resets don't undo sets, move side effects out of shared actions, use separate state fields instead of reusing one field for multiple concerns, or add guards to prevent conditional dead paths.
No. This audits state interaction and handler logic only. For API bugs (wrong response shape, missing endpoint), use systematic-debugging. For styling issues, use visual inspection.
Run after systematic-debugging (which finds the other 54 bug types), then before verification-before-completion (which verifies fixes work). Feed findings into test-driven-development to add tests for each bug.
Full instructions (SKILL.md)
Source of truth, from affaan-m/ecc.
name: click-path-audit description: "Trace every user-facing button/touchpoint through its full state change sequence to find bugs where functions individually work but cancel each other out, produce wrong final state, or leave the UI in an inconsistent state. Use when: systematic debugging found no bugs but users report broken buttons, or after any major refactor touching shared state stores." metadata: origin: community
/click-path-audit — Behavioural Flow Audit
Find bugs that static code reading misses: state interaction side effects, race conditions between sequential calls, and handlers that silently undo each other.
The Problem This Solves
Traditional debugging checks:
- Does the function exist? (missing wiring)
- Does it crash? (runtime errors)
- Does it return the right type? (data flow)
But it does NOT check:
- Does the final UI state match what the button label promises?
- Does function B silently undo what function A just did?
- Does shared state (Zustand/Redux/context) have side effects that cancel the intended action?
Real example: A "New Email" button called setComposeMode(true) then selectThread(null). Both worked individually. But selectThread had a side effect resetting composeMode: false. The button did nothing. 54 bugs were found by systematic debugging — this one was missed.
How It Works
For EVERY interactive touchpoint in the target area:
1. IDENTIFY the handler (onClick, onSubmit, onChange, etc.)
2. TRACE every function call in the handler, IN ORDER
3. For EACH function call:
a. What state does it READ?
b. What state does it WRITE?
c. Does it have SIDE EFFECTS on shared state?
d. Does it reset/clear any state as a side effect?
4. CHECK: Does any later call UNDO a state change from an earlier call?
5. CHECK: Is the FINAL state what the user expects from the button label?
6. CHECK: Are there race conditions (async calls that resolve in wrong order)?
Execution Steps
Step 1: Map State Stores
Before auditing any touchpoint, build a side-effect map of every state store action:
For each Zustand store / React context in scope:
For each action/setter:
- What fields does it set?
- Does it RESET other fields as a side effect?
- Document: actionName → {sets: [...], resets: [...]}
This is the critical reference. The "New Email" bug was invisible without knowing that selectThread resets composeMode.
Output format:
STORE: emailStore
setComposeMode(bool) → sets: {composeMode}
selectThread(thread|null) → sets: {selectedThread, selectedThreadId, messages, drafts, selectedDraft, summary} RESETS: {composeMode: false, composeData: null, redraftOpen: false}
setDraftGenerating(bool) → sets: {draftGenerating}
...
DANGEROUS RESETS (actions that clear state they don't own):
selectThread → resets composeMode (owned by setComposeMode)
reset → resets everything
Step 2: Audit Each Touchpoint
For each button/toggle/form submit in the target area:
TOUCHPOINT: [Button label] in [Component:line]
HANDLER: onClick → {
call 1: functionA() → sets {X: true}
call 2: functionB() → sets {Y: null} RESETS {X: false} ← CONFLICT
}
EXPECTED: User sees [description of what button label promises]
ACTUAL: X is false because functionB reset it
VERDICT: BUG — [description]
Check each of these bug patterns:
Pattern 1: Sequential Undo
handler() {
setState_A(true) // sets X = true
setState_B(null) // side effect: resets X = false
}
// Result: X is false. First call was pointless.
Pattern 2: Async Race
handler() {
fetchA().then(() => setState({ loading: false }))
fetchB().then(() => setState({ loading: true }))
}
// Result: final loading state depends on which resolves first
Pattern 3: Stale Closure
const [count, setCount] = useState(0)
const handler = useCallback(() => {
setCount(count + 1) // captures stale count
setCount(count + 1) // same stale count — increments by 1, not 2
}, [count])
Pattern 4: Missing State Transition
// Button says "Save" but handler only validates, never actually saves
// Button says "Delete" but handler sets a flag without calling the API
// Button says "Send" but the API endpoint is removed/broken
Pattern 5: Conditional Dead Path
handler() {
if (someState) { // someState is ALWAYS false at this point
doTheActualThing() // never reached
}
}
Pattern 6: useEffect Interference
// Button sets stateX = true
// A useEffect watches stateX and resets it to false
// User sees nothing happen
Step 3: Report
For each bug found:
CLICK-PATH-NNN: [severity: CRITICAL/HIGH/MEDIUM/LOW]
Touchpoint: [Button label] in [file:line]
Pattern: [Sequential Undo / Async Race / Stale Closure / Missing Transition / Dead Path / useEffect Interference]
Handler: [function name or inline]
Trace:
1. [call] → sets {field: value}
2. [call] → RESETS {field: value} ← CONFLICT
Expected: [what user expects]
Actual: [what actually happens]
Fix: [specific fix]
Scope Control
This audit is expensive. Scope it appropriately:
- Full app audit: Use when launching or after major refactor. Launch parallel agents per page.
- Single page audit: Use after building a new page or after a user reports a broken button.
- Store-focused audit: Use after modifying a Zustand store — audit all consumers of the changed actions.
Recommended agent split for full app:
Agent 1: Map ALL state stores (Step 1) — this is shared context for all other agents
Agent 2: Dashboard (Tasks, Notes, Journal, Ideas)
Agent 3: Chat (DanteChatColumn, JustChatPage)
Agent 4: Emails (ThreadList, DraftArea, EmailsPage)
Agent 5: Projects (ProjectsPage, ProjectOverviewTab, NewProjectWizard)
Agent 6: CRM (all sub-tabs)
Agent 7: Profile, Settings, Vault, Notifications
Agent 8: Management Suite (all pages)
Agent 1 MUST complete first. Its output is input for all other agents.
When to Use
- After systematic debugging finds "no bugs" but users report broken UI
- After modifying any Zustand store action (check all callers)
- After any refactor that touches shared state
- Before release, on critical user flows
- When a button "does nothing" — this is THE tool for that
When NOT to Use
- For API-level bugs (wrong response shape, missing endpoint) — use systematic-debugging
- For styling/layout issues — visual inspection
- For performance issues — profiling tools
Integration with Other Skills
- Run AFTER
/superpowers:systematic-debugging(which finds the other 54 bug types) - Run BEFORE
/superpowers:verification-before-completion(which verifies fixes work) - Feeds into
/superpowers:test-driven-development— every bug found here should get a test
Example: The Bug That Inspired This Skill
ThreadList.tsx "New Email" button:
onClick={() => {
useEmailStore.getState().setComposeMode(true) // ✓ sets composeMode = true
useEmailStore.getState().selectThread(null) // ✗ RESETS composeMode = false
}}
Store definition:
selectThread: (thread) => set({
selectedThread: thread,
selectedThreadId: thread?.id ?? null,
messages: [],
drafts: [],
selectedDraft: null,
summary: null,
composeMode: false, // ← THIS silent reset killed the button
composeData: null,
redraftOpen: false,
})
Systematic debugging missed it because:
- The button has an onClick handler (not dead)
- Both functions exist (no missing wiring)
- Neither function crashes (no runtime error)
- The data types are correct (no type mismatch)
Click-path audit catches it because:
- Step 1 maps
selectThreadresetscomposeMode - Step 2 traces the handler: call 1 sets true, call 2 resets false
- Verdict: Sequential Undo — final state contradicts button intent
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