### Capture problems → fixes (MemPalace) **Gate first.** Read `.planning/config.json`. If `mempalace.enabled` is not `true`, or `mempalace.capture_artifacts` is `false`, **skip this entire section** and let the wave complete unchanged. (This contribution is only injected when the capability is enabled; the `capture_artifacts` check lets you turn capture off without disabling the rest of the capability.) Otherwise — after verifying this wave, persist any *confirmed* problem→fix pairs into the palace so they are recalled in future phases. This is best-effort; if MemPalace is unreachable, skip silently — capture never fails a wave. For each confirmed bug/issue resolved in this wave: 1. **Resolve the wing** (`mempalace.wing`, else `project_code`, else project dir) and target `room: problems`. 2. **Dedupe first.** Call `mempalace_check_duplicate` (interactive) before filing so re-runs don't create duplicate drawers. 3. **File the drawer verbatim.** Store the problem statement and its fix as a drawer in `room: problems` — interactive: `mempalace_add_drawer`; headless: stage the artifact under the `problems/` folder and run `mempalace mine` (no `--room` flag — see [CLI reference](https://mempalaceofficial.com/reference/cli.html); room assignment is via `detect_room()` folder-path match per the [mining guide](https://mempalaceofficial.com/guide/mining.html); use the same staging pattern documented in `gsd-mempalace-capture` Step 3). Include provenance (`source_file`, phase id). 4. **Mirror the KG fact** when `mempalace.mirror_kg` is on: add `(, fixed_by, )` with `valid_from` = the phase date via `mempalace_kg_add`. 5. **Mode awareness** (`mempalace.memory_mode`). Under `augment` the fact is an *additive* mirror alongside `.planning/graphs/`. Under `kg_backend`/`replace` the palace is the *authoritative* store for the fact; GSD still writes `.planning/graphs/` through its normal graphify, so an unreachable palace never loses it. Captures are idempotent: deterministic drawer IDs + `check_duplicate` mean re-running the wave re-files the same content without duplication. On any error, skip and let the wave complete normally.