# BRIEFING — 2026-10-02T07:42:00Z

## Mission
Adversarially challenge and verify Spacebar dodge roll controls, kinematics, charge accounting (3 -> 2 on single tap, 0 wasted charges during i-frame), 0.25s i-frame lifecycle without classList error, and attack cancel in client/web_pc/.

## 🔒 My Identity
- Archetype: teamwork_preview_challenger
- Roles: critic, specialist
- Working directory: c:\Projects\FreeExile\.agents\teamwork\challenger_18_3\
- Original parent: 75463099-5538-440a-8ff9-91c183526f7a
- Milestone: Phase 18 - Desktop PC Client Dodge Controls & Charge Accounting Verification
- Instance: 1 of 1

## 🔒 Key Constraints
- Review-only — do NOT modify implementation code.
- Must run verification code ourselves empirically.
- Reproduce or verify all claims with concrete test results.
- Write report with empirical evidence metrics to handoff.md and notify parent.

## Current Parent
- Conversation ID: 75463099-5538-440a-8ff9-91c183526f7a
- Updated: 2026-10-02T07:42:00Z

## Review Scope
- **Files to review**:
  - `client/web_pc/` (dodge roll controls, kinematics, dodge charge accounting, UI DOM elements)
  - `client/web_pc/js/input/input_handler.js`
  - `client/web_pc/js/pc_input_controller.js`
  - `client/web_pc/js/pc_hud_controller.js`
  - `client/web_pc/index.html`
- **Interface contracts**:
  - `c:\Projects\FreeExile\.agents\teamwork\ORIGINAL_REQUEST.md` (header `## 2026-10-02T05:17:43Z`)
  - `c:\Projects\FreeExile\.agents\teamwork\orchestrator_16\PROJECT.md`
  - `c:\Projects\FreeExile\.agents\teamwork\worker_iter4\handoff.md`
- **Review criteria**:
  - Initial charges = 3: VERIFIED
  - Single tap decrement to 2: VERIFIED
  - Spamming during i-frame does not waste charges (charges stay 2): VERIFIED
  - 0.25s i-frame lifecycle without classList error: VERIFIED
  - Successive valid taps decrement to 1, then 0: VERIFIED
  - Pressing at 0 charges keeps 0, no errors, cooldown feedback: VERIFIED
  - Attack cancel via dodge roll: VERIFIED

## Key Decisions Made
- Executed comprehensive 10-check adversarial harness (`test_dodge_adversarial.py`).
- Confirmed zero regression across all 21 E2E tests and 30 unit tests.
- Rendered unequivocal verdict: **APPROVE**.

## Artifact Index
- `handoff.md` — Final adversarial challenge and verification report (APPROVE verdict)
- `progress.md` — Liveness heartbeat
- `test_dodge_adversarial.py` — 10-point empirical challenge test script

## Attack Surface
- **Hypotheses tested**:
  - Initial state: 3 charges, maxCharges 3, badge "3", isIFrame false, badge-iframe hidden -> CONFIRMED (PASS).
  - Single tap decrement: Space decrements exactly 1 charge (3 -> 2), isIFrame true, timer 0.25s, animState 'dodge', badge-iframe visible -> CONFIRMED (PASS).
  - Spam immunity during i-frame: 8 rapid Space presses while isIFrame is true consume 0 extra charges (charges remain 2) -> CONFIRMED (PASS).
  - i-Frame expiration: iFrame timer completes at 0.25s, isIFrame becomes false, badge-iframe hidden, 0 TypeError classList exceptions, 0 page errors -> CONFIRMED (PASS).
  - 2nd & 3rd valid taps: charges cleanly decrement 2 -> 1 -> 0, slot enters cooldown, is-on-cooldown added to DOM, badge displays "0" and is-depleted -> CONFIRMED (PASS).
  - Depletion immunity: Pressing Space at 0 charges maintains 0 charges, no dodge occurs, radial cooldown sweep feedback active, 0 errors -> CONFIRMED (PASS).
  - Attack cancellation: Initiating primary attack puts player in 'attack' animState with action lock, pressing Space immediately cancels into 'dodge', resets attackTimer to 0, sets isIFrame true, consumes 1 charge -> CONFIRMED (PASS).
  - Kinematics boost: Player velocity formula applies exact 1.75x boost during dodge i-frame without coordinate NaN/Infinity -> CONFIRMED (PASS).
  - Charge recharge loop: Slots automatically regenerate charges at 3.0s interval -> CONFIRMED (PASS).
- **Vulnerabilities found**: None. Both previous defects from challenger_18_1 (runtime crash on badge-iframe and double charge decrement) are completely resolved and verified.
- **Untested angles**: All targeted requirements from dispatch rigorously challenged and verified.

## Loaded Skills
- None specified in dispatch.