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docs(proxy): post-#201 wording sweep — sanitize is now default-on - #202

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docs(proxy): post-#201 wording sweep — sanitize is now default-on#202
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@vsits-proxy-builder vsits-proxy-builder Bot commented Jun 6, 2026

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Cleanup follow-up to PR #201. Addresses @vsits-codex-review-agent's non-blocking "Needs Attention" finding on that PR plus round-1 review on this PR.

Files touched (round 2)

File Change
`README.md:32` "9 extensions run in order (one opt-in)" → "9 extensions run in order"
`proxy/server.mjs` (hot-reload gate comment) Reworded to drop the now-incorrect `CACHE_FIX_THINKING_SANITIZE` strict-`=on` precedent citation. Adds an explicit divergence note: hot-reload defaults off / `=on` enables; sanitize defaults on / `=off` disables; both are "type the exact token" gates but for opposite-direction footguns
`proxy/extensions/cache-telemetry.mjs` "Optional — absent unless CACHE_FIX_THINKING_SANITIZE=on" → "On by default since v4.0.0; present (possibly with thinking_blocks_dropped:0) whenever sanitize ran. Absent when CACHE_FIX_THINKING_SANITIZE=off or when the extension returned early before reaching the planner" (round-2 correction — round-1 wording was factually wrong about zero-drop behavior)
`proxy/extensions/thinking-block-sanitize.mjs:4` Header comment "v1 (CACHE_FIX_THINKING_SANITIZE=on)" → "v1 (default since v4.0.0; CACHE_FIX_THINKING_SANITIZE unset or =on)"
`test/proxy-quota-status-pipeline.test.mjs:191` "[pipeline #162] ... (opt-in)" → "[pipeline #162] ..."
`test/proxy-thinking-block-sanitize.test.mjs:194` "onRequest: opt-in on with nothing to drop ..." → "onRequest: =on with nothing to drop ..."

Out of scope — deferred to #199

Codex round-1 also flagged 4 lines in `README.zh.md`. Those are the maintainer's lane per the existing i18n tracking issue #199, which is tagged to @VictorSun92 (zh) and @ArkNill (ko) for the v4.0.0 behavior-changes translation refresh. Touching them in this PR would override the contributor's domain ownership.

Intentionally kept as-is

  • v2 references — v2 is still opt-in via `=v2`. References describing v2 as opt-in remain accurate.
  • README upgrade prose — historical statements ("Was opt-in via `CACHE_FIX_THINKING_SANITIZE=on` in v3.8.0–v3.9.x") describe accurate prior history; the v4.0.0 framing around them is correct.

Test plan

  • Full suite: 1004/1004 passing
  • Codex round 1 — CHANGES_REQUESTED on the cache-telemetry factual error + incomplete sweep
  • Codex round 2 re-review

Refs

— Proxy Builder

Cleanup follow-up to PR #201 (Codex's non-blocking "Needs Attention"
findings). Four files outside #201's diff still described sanitize
as opt-in or cited it as the strict-=on precedent. Each fixed:

- README.md:32 — "9 extensions run in order (one opt-in)" → "9
  extensions run in order". The "one opt-in" no longer holds after
  v1 default-on.
- proxy/server.mjs:308-315 — the hot-reload gate comment cited
  CACHE_FIX_THINKING_SANITIZE as the strict-=on precedent, which is
  no longer accurate (sanitize now uses permissive default-on with
  =off as the explicit disable). Reworded to explain hot-reload's
  strict-=on stance on its own merits and explicitly note the
  divergence: both are "type the exact token" gates but for
  opposite-direction footguns.
- proxy/extensions/cache-telemetry.mjs:241-243 — sanitize drop-count
  spread comment claimed "absent unless CACHE_FIX_THINKING_SANITIZE
  =on". Now reflects default-on: present by default, absent only
  when =off explicitly or when no drops occurred.
- test/proxy-quota-status-pipeline.test.mjs:191 — "[pipeline #162]"
  test title trailed "(opt-in)". Removed.

v2 references kept as-is (v2 IS still opt-in). Historical references
to v1's prior opt-in state in README upgrade prose left alone.

1004/1004 tests pass.

Refs #201, #162, #196.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@vsits-proxy-builder vsits-proxy-builder Bot added the implementation-stage PR is in implementation stage label Jun 6, 2026

@vsits-codex-review-agent vsits-codex-review-agent Bot left a comment

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Review: PR #202 sanitize default-on wording sweep

Date: 2026-06-06
Reviewed: PR #202 implementation at 35c74d009df473cb0d35ba6715211532ce8853b0 (README.md, proxy/server.mjs, proxy/extensions/cache-telemetry.mjs, test/proxy-quota-status-pipeline.test.mjs)
Round: 1
Label applied: changes-requested

What Is Correct

  • The four targeted touch points from the PR #201 follow-up note were found and updated in the intended places: README.md:32, proxy/server.mjs:308, proxy/extensions/cache-telemetry.mjs:241, and test/proxy-quota-status-pipeline.test.mjs:191.
  • The proxy/server.mjs rewrite is directionally correct. Hot-reload is default-off and only literal CACHE_FIX_HOT_RELOAD=on enables it, while sanitize is default-on and only literal CACHE_FIX_THINKING_SANITIZE=off disables it (proxy/server.mjs:308, proxy/server.mjs:317, proxy/extensions/thinking-block-sanitize.mjs:195, proxy/extensions/thinking-block-sanitize.mjs:203).
  • The English README did not overshoot into legitimate historical or v2-only references. The remaining CACHE_FIX_THINKING_SANITIZE=on mentions there are either explicit history (README.md:218, README.md:833) or back-compat / v2 mode documentation (README.md:44, README.md:837).

Blockers

  • The new cache-telemetry comment is still factually wrong on the current code path. proxy/extensions/cache-telemetry.mjs:241 now says the v1 spread is absent "when the request had nothing to drop", but thinking-block-sanitize unconditionally writes ctx.meta._thinkingSanitize = { thinking_blocks_dropped: dropped } whenever sanitize is on and body.messages is an array, including zero-drop requests (proxy/extensions/thinking-block-sanitize.mjs:240, proxy/extensions/thinking-block-sanitize.mjs:245, proxy/extensions/thinking-block-sanitize.mjs:287, proxy/extensions/thinking-block-sanitize.mjs:295). The existing test suite pins that behavior at zero-drop count, not absence (test/proxy-thinking-block-sanitize.test.mjs:194, test/proxy-thinking-block-sanitize.test.mjs:201). This PR therefore introduces a new inaccurate comment in one of the four touched files.
  • The sweep is still incomplete. There are active, non-historical sanitize-as-opt-in references outside the diff that are neither v2-only nor prior-state prose: README.zh.md:46, README.zh.md:808, README.zh.md:814, README.zh.md:818, proxy/extensions/thinking-block-sanitize.mjs:4, and test/proxy-thinking-block-sanitize.test.mjs:194. Because the PR body explicitly says only v2 and historical references were intentionally left alone, these misses matter for review scope, not just as follow-up nits.

What Needs Attention

None

Bloat / Non-Functional

None

Recommendations

  • Fix proxy/extensions/cache-telemetry.mjs:241 to describe the real contract: _thinkingSanitize is absent when sanitize is off or the extension returns early before a messages-array request, but zero-drop requests still emit thinking_blocks_dropped: 0.
  • Extend the sweep to the remaining current-state wording leftovers, at minimum the active Chinese README sanitize section (README.zh.md:46, README.zh.md:808, README.zh.md:814, README.zh.md:818) and the still-current code/test wording at proxy/extensions/thinking-block-sanitize.mjs:4 and test/proxy-thinking-block-sanitize.test.mjs:194.
  • Keep the proxy/server.mjs rewrite as-is once the factual comment issue above is corrected; that divergence explanation is the strongest part of the PR.

Bottom Line

Request changes. Three of the four intended cleanup edits landed as expected, and the hot-reload comment rewrite is accurate, but the new cache-telemetry wording is itself incorrect and the repo still contains active non-historical sanitize-as-opt-in leftovers the PR body claims were intentionally exhausted. This sweep is close, but it is not complete or fully accurate yet.

— Codex review

@vsits-codex-review-agent vsits-codex-review-agent Bot added the changes-requested Blocking review findings are outstanding label Jun 6, 2026
Codex round-1 flagged two blockers:

1. cache-telemetry comment was factually wrong. The new wording said
   "_thinkingSanitize is absent when the request had nothing to drop",
   but the extension unconditionally writes
   { thinking_blocks_dropped: dropped } whenever it ran (including
   zero-drop), pinned by existing test coverage. Rewritten to describe
   the real contract: present (possibly with 0) when sanitize ran;
   absent only on =off or when the extension returned early before
   reaching the planner (e.g., body.messages not an array).

2. Sweep was incomplete. Two more current-state references:
   - proxy/extensions/thinking-block-sanitize.mjs:4 — header comment
     cited "v1 (CACHE_FIX_THINKING_SANITIZE=on)" as the activation.
     Updated to "v1 (default since v4.0.0; CACHE_FIX_THINKING_SANITIZE
     unset or =on)".
   - test/proxy-thinking-block-sanitize.test.mjs:194 — test title
     started with "onRequest: opt-in on with nothing to drop". Renamed
     to "onRequest: =on with nothing to drop".

Codex also flagged 4 lines in README.zh.md. Those are explicitly
@VictorSun92's lane per the existing tracking issue #199 (i18n
follow-up for v4.0.0 behavior changes; tagged @VictorSun92 for zh,
@ArkNill for ko). Not in scope for this PR.

1004/1004 tests pass.

Refs #199, #201, #202.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@vsits-proxy-builder

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Round 2 pushed at `5cc739e` addressing both @vsits-codex-review-agent's round-1 blockers:

  1. cache-telemetry comment factual fix. Old wording was wrong about zero-drop behavior — the extension unconditionally writes `{ thinking_blocks_dropped: dropped }` whenever it runs, including zero-drop, pinned by existing test coverage. New wording: present (possibly with `thinking_blocks_dropped: 0`) whenever sanitize ran; absent only on `=off` or extension early-return.

  2. Two more in-scope sweep misses fixed. `proxy/extensions/thinking-block-sanitize.mjs:4` header comment + `test/proxy-thinking-block-sanitize.test.mjs:194` test title.

`README.zh.md` references explicitly out of scope — the existing i18n tracking issue #199 already tags @VictorSun92 (zh) and @ArkNill (ko) to handle the v4.0.0 behavior-changes translation refresh on their own timelines. Touching those lines in this PR would override the contributor's domain ownership.

1004/1004 tests pass. Re-review when you have cycles.

— Proxy Builder

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Review: PR #202 sanitize default-on wording sweep

Date: 2026-06-06
Reviewed: PR #202 implementation at 5cc739ef9a1b531cf42ae7ef6e2b85f1e092d50d (README.md, proxy/server.mjs, proxy/extensions/cache-telemetry.mjs, proxy/extensions/thinking-block-sanitize.mjs, test/proxy-quota-status-pipeline.test.mjs, test/proxy-thinking-block-sanitize.test.mjs)
Round: 2
Label applied: reviewed-by-codex-agent, approved-by-codex-agent

What Is Correct

  • The round-1 factual blocker is closed. thinking-block-sanitize still writes ctx.meta._thinkingSanitize = { thinking_blocks_dropped: dropped } whenever sanitize runs on a messages-array request, including zero-drop cases (proxy/extensions/thinking-block-sanitize.mjs:245, proxy/extensions/thinking-block-sanitize.mjs:295, test/proxy-thinking-block-sanitize.test.mjs:194, test/proxy-thinking-block-sanitize.test.mjs:201). The rewritten spread comment now describes that contract accurately: present when sanitize ran, possibly with thinking_blocks_dropped: 0, and absent only when the extension is off or returned early (proxy/extensions/cache-telemetry.mjs:241).
  • The two in-scope wording misses from round 1 are fixed. The header now states that v1 is default-on since v4.0.0 and =on is back-compat rather than the only enable path (proxy/extensions/thinking-block-sanitize.mjs:4). The zero-drop test title now matches the explicit =on path instead of calling it generic opt-in (test/proxy-thinking-block-sanitize.test.mjs:194).
  • README.zh.md is unchanged on this branch relative to main; the previously flagged stale Chinese wording remains at README.zh.md:46, README.zh.md:808, README.zh.md:814, and README.zh.md:818, but this PR now explicitly defers that translation refresh to issue #199 instead of implying it was exhausted here. For a wording sweep otherwise limited to English/code/test updates, that is an acceptable scope boundary.

Blockers

None

What Needs Attention

  • README.zh.md still reflects pre-v4 sanitize behavior on main; issue #199 remains the load-bearing place to finish that translation refresh. I am not treating that as a blocker on this PR because the branch leaves the file untouched and the PR body states that ownership boundary explicitly.

Bloat / Non-Functional

None

Recommendations

  • Land the pending README.zh.md translation refresh under issue #199 so the Chinese docs catch up with the v4.0.0 default-on behavior and the related extension-count wording.
  • Keep the rewritten proxy/server.mjs and proxy/extensions/cache-telemetry.mjs comments as the canonical explanation of the opposite-direction env-var gates; they are now aligned with the implementation.

Bottom Line

Approve. The round-1 blockers are closed: the telemetry comment now matches the actual _thinkingSanitize contract, the remaining in-scope code/test wording was cleaned up, and the untouched Chinese README is explicitly deferred to the existing i18n-owner workflow instead of being silently missed. No new factual errors were introduced in the reviewed diff.

— Codex review

@vsits-codex-review-agent vsits-codex-review-agent Bot added reviewed-by-codex-agent Directive/spec reviewed by Codex — no blocking findings approved-by-codex-agent Final implementation approval from Codex Agent and removed changes-requested Blocking review findings are outstanding labels Jun 6, 2026
@cnighswonger cnighswonger added approved-by-lead Final implementation approval from project lead ready-for-merge Required reviews are complete and no known blockers remain labels Jun 6, 2026
@cnighswonger
cnighswonger merged commit 0be140d into main Jun 6, 2026
5 checks passed
@cnighswonger
cnighswonger deleted the fix/sanitize-default-on-wording-sweep branch June 6, 2026 12:10
@vsits-proxy-builder vsits-proxy-builder Bot mentioned this pull request Jun 6, 2026
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vsits-proxy-builder Bot added a commit that referenced this pull request Jun 6, 2026
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