Handoff: Daily used Eufy C10 watcher (Hermes)

2026-07-15 · Hermes agent (xps13) · generated by Claude Code

Summary

Miro's Anker Eufy Robot Vacuum Auto-Empty C10 (model T2292511) is missing only the dust tray / dust box that holds the filter (ダストボックス, 240 ml). Anker JP quotes ¥15,000 for a send-in repair. The part is not sold separately anywhere (verified 2026-07-15). Mission: watch Japanese second-hand markets daily for a used or junk C10. Standing buy decision from Miro: any C10 at ≤¥10,000 total is a BUY, even a broken/junk unit — it only needs a good dust box to be a viable parts donor.

Mission & decision rule

Continuation target: set up a daily (ideally morning-brief-integrated) watcher over Mercari, Yahoo!オークション, Yahoo!フリマ, and Rakuma for used Eufy C10 units and C10 dust-box part-only listings.
Decision rule (pre-approved by Miro 2026-07-15):
- C10 listing at ≤¥10,000 total (incl. shipping) → BUY alert Miro immediately, flagged as pre-approved — condition irrelevant (junk/ジャンク/動作未確認 all fine) as long as photos or description do not show the dust box itself missing or cracked.
- Part-only dust box listing (ダストボックス / ダスト容器 for C10/T2292) at any sane price (≲¥5,000) → BUY alert immediately. These did not exist on 2026-07-15; one appearing is the jackpot.
- ¥10,001–13,500 working unit → NOTIFY as "worth considering" (still beats the ¥15k repair), no pre-approval.
- Anything above ¥13,500 → ignore; log in daily brief only.
Purchase mechanics: Hermes cannot buy autonomously (Mercari/Yahoo accounts are Miro's). "Buy" = immediate push alert with listing URL + price + one-line condition note so Miro can snipe from his phone. Speed matters — sub-¥10k units sell within hours.

Market state & search config

Verified facts (as of 2026-07-15)

JP model: Eufy Robot Vacuum Auto-Empty C10, T2292511, black, released 2025-03. New: ¥28,990–29,990 (kakaku, Anker JP).
Anker sells filters and station dust bags separately, not the dust box. Filter + station bags are shared with Omni C20; dust-box cross-compatibility with other models is unverified — do not assume a C20 box fits.
No part-only dust box listing existed on Mercari / ヤフオク / Yahoo!フリマ / Rakuma. Hits at ¥1,000–3,000 are filters/brushes/bags — false positives.
Recent sold prices for whole working units: ¥9,000 (Mercari, m55409209053) and ¥13,500 (Yahoo!フリマ, z550569328). Active listings clustered ¥14,420–21,200.
Cheapest active on 2026-07-15: ¥14,420 scuffed unit, Rakuma/Rehello (listing); ¥21,200 Mercari unit explicitly "dust box included" (m71599568666).

Search terms (run all daily)

Eufy C10
Eufy T2292
Eufy Auto-Empty C10
Eufy C10 ジャンク
Eufy 部品取り
Eufy ダストボックス
Eufy ダスト容器
Anker ロボット掃除機 ジャンク

Search URLs that worked: Mercari · ヤフオク · Yahoo!フリマ · Rakuma. Filter false positives: listings mentioning only フィルター / ブラシ / 紙パック / 交換用 are accessories, not the machine or the dust box.

Details

Suggested implementation

Add a daily job on xps13 (fits the existing 4am codex exec morning-brief slot — see ~/nightly/ pattern on main desktop; Hermes brief already runs at 4am).
Scrape/search the four marketplaces with the terms above. Plain HTTPS fetch of the search URLs works for Mercari/Rakuma; ヤフオク may need the browser path if blocked.
Keep a small state file of seen listing IDs so alerts fire only on new listings or price drops.
Alert channel: ntfy at http://192.168.0.14/claude-agents (home LAN) for instant BUY pushes; include listing URL, price, condition one-liner, and the phrase "pre-approved ≤¥10k". Include findings in the morning brief either way. Slack fallback: channel C0ACKPPTX2T (#mcp-bot) — note xps13 Slack token was still pending as of early July.

Parallel action (not Hermes, one-off for Miro)

Email/chat Anker JP support asking to buy just the T2292 ダスト容器 as a spare part instead of the ¥15,000 send-in repair. Costs nothing; if they sell it, kill the watcher.

Risks & open questions

Junk listings rarely photograph the dust box; a junk unit could itself be missing the tray. Mitigate: check photos, ask seller when time allows — but at ≤¥10k the pre-approval stands anyway per Miro.
Dust-box compatibility with Omni C20 or other Eufy models unverified — only alert on actual C10/T2292 matches.
Marketplace scraping can hit bot detection; degrade gracefully to reporting "watcher ran, N results" in the brief rather than failing silently. On errors, ping ntfy per standing convention.

Provenance

Research from two Codex web-research runs on 2026-07-15 (sessions 019f62f5-8649-7030-9a18-9c82076475fc and 019f62f8-6666-7f51-ae00-fbf3161512c6, resumable via codex resume <id> on the main desktop). Alternatives context: at ~¥29k new, 2026 rivals (Xiaomi X20+, Ecovacs N20 Plus, Roborock Q7B+) out-spec the C10, but Miro's goal is repairing the existing unit, not replacing it.