# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-02-24)

**Core value:** Archive impossible to unpack without knowing the format -- standard tools (7z, tar, unzip, binwalk) cannot recognize or extract contents
**Current focus:** Phase 1: Format Specification

## Current Position

Phase: 1 of 6 (Format Specification)
Plan: 0 of 1 in current phase
Status: Ready to plan
Last activity: 2026-02-24 -- Roadmap created

Progress: [░░░░░░░░░░] 0%

## Performance Metrics

**Velocity:**
- Total plans completed: 0
- Average duration: -
- Total execution time: 0 hours

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**
- Last 5 plans: -
- Trend: -

*Updated after each plan completion*

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- Roadmap: Format spec must precede all implementation (all three decoders build against same spec)
- Roadmap: Obfuscation (XOR headers, encrypted TOC, decoy padding) deferred to Phase 6 after all decoders work without it

### Pending Todos

None yet.

### Blockers/Concerns

- Open question: Does target busybox have `openssl enc -aes-256-cbc` with `-K`/`-iv` flags? (affects Phase 5)
- Open question: Is `xxd` available in target busybox? Fallback: `od` (affects Phase 5)
- Open question: Should HMAC use same key as AES or derived subkey? (must resolve in Phase 1 spec)

## Session Continuity

Last session: 2026-02-24
Stopped at: Roadmap created, ready to plan Phase 1
Resume file: None