Filed by the Account-2 read-only amplifier (2026-09-16, HEAD f635e62). Problem: fetchOpenbook follows the signed message handshake to set the listen cookie (src/openbook.mjs:302), then immediately issues an explicit GET / for the player page carrying window.eData (src/openbook.mjs:306-309). follow() already returns the terminal response body (src/openbook.mjs:396-406), and the e2e sim serves the player page at / with set-cookie on the first hit (test/helpers/overdrive-sim.mjs:166-171,195-201) — suggesting the handshake's terminal 200 already carries eData on real hosts too.
Impact if confirmed: one full RTT + one large page transfer wasted per loan on every archive/open. med confidence — the sim was written to match observed behavior, not proven; the real-host handshake terminal shape is unverified.
Evaluation question (implementation is NOT the todo): probe a real host once — capture the handshake's terminal body and check for eData. If present, reuse it with a fallback to the explicit GET (shape-guarded); if absent, close as declined with the probe evidence.
Proposed focus packet: one-shot probe script (existing session), shape guard in fetchOpenbook, decode-path unchanged.
Filed by the Account-2 read-only amplifier (2026-09-16, HEAD f635e62). Problem:
fetchOpenbookfollows the signedmessagehandshake to set the listen cookie (src/openbook.mjs:302), then immediately issues an explicitGET /for the player page carrying window.eData (src/openbook.mjs:306-309).follow()already returns the terminal response body (src/openbook.mjs:396-406), and the e2e sim serves the player page at/with set-cookie on the first hit (test/helpers/overdrive-sim.mjs:166-171,195-201) — suggesting the handshake's terminal 200 already carries eData on real hosts too.Impact if confirmed: one full RTT + one large page transfer wasted per loan on every archive/open. med confidence — the sim was written to match observed behavior, not proven; the real-host handshake terminal shape is unverified.
Evaluation question (implementation is NOT the todo): probe a real host once — capture the handshake's terminal body and check for eData. If present, reuse it with a fallback to the explicit GET (shape-guarded); if absent, close as declined with the probe evidence.
Proposed focus packet: one-shot probe script (existing session), shape guard in fetchOpenbook, decode-path unchanged.