diff --git a/README.md b/README.md
index 73b4aa7f2..608168d41 100644
--- a/README.md
+++ b/README.md
@@ -135,12 +135,12 @@ The native path installs ECC's skills, agents, commands, and plugin-managed hook
-
-Community sponsors:Mike Morgan · @jasonwu513 · @1anter · @massimotodaro · @meadmccabe
+Community sponsors:Mike Morgan (inactive) · @jasonwu513 · @1anter · @massimotodaro · @meadmccabe
+Past sponsors:Atlas CloudBecome a Sponsor · Sponsor Tiers · Sponsorship Program
@@ -827,6 +827,7 @@ It's harness- and model-agnostic: a plain CLI (`ecc-plan-canvas`) speaking JSON,
- **Kimi Code install target** (`--target kimi`): ECC installs natively into [Moonshot AI](https://www.moonshot.ai)'s Kimi Code CLI
- **Self-host on GPUs**: a verified path with [Itô](https://compute.itomarkets.com), ECC's preferred compute sponsor, including the opt-in `ecc ito find` RFQ bridge (details and disclosures above in [Self-Hosted Models and Custom Endpoints](#self-hosted-models-and-custom-endpoints))
- **Moonshot AI (Kimi), Itô, and Atlas Cloud** are now public sponsors
+- **Historical note (2026-09-10):** Atlas Cloud was a past sponsor during the 2.1 release period and is no longer a current sponsor.
- **Hermes + OpenClaw install targets**, a Codex navigation guide, consolidated PostToolUse hooks, and supply-chain hardening
### Current development: Unified Memory Vault
diff --git a/SPONSORS.md b/SPONSORS.md
index dd74724b3..15f4cff9e 100644
--- a/SPONSORS.md
+++ b/SPONSORS.md
@@ -12,7 +12,6 @@ Thank you to everyone funding ECC's open-source work. Your sponsorship is what l
|---------|------|-------|
| [**CodeRabbit**](https://www.coderabbit.ai) | | 2026 |
| [**Greptile**](https://www.greptile.com/go/ecc) | | 2026 |
-| [**Atlas Cloud**](https://www.atlascloud.ai/?utm_source=github&utm_medium=link&utm_campaign=ECC) | | 2026 |
| [**Moonshot AI (Kimi)**](https://www.moonshot.ai) | | 2026 |
| [**Itô**](https://compute.itomarkets.com) | | 2026 |
@@ -24,10 +23,16 @@ Run or self-host any open-source model. Itô partners with ECC on compute, while
| Sponsor | Since |
|---------|-------|
-| [Mike Morgan](https://github.com/mikejmorgan-ai) | 2026 |
*[Become a Team sponsor](https://github.com/sponsors/affaan-m) to be listed in SPONSORS.md.*
+## Past Sponsors
+
+| Sponsor | Logo or tier | Since | Status |
+|---------|--------------|-------|--------|
+| [**Atlas Cloud**](https://www.atlascloud.ai/?utm_source=github&utm_medium=link&utm_campaign=ECC) | | 2026 | Past sponsor |
+| [Mike Morgan](https://github.com/mikejmorgan-ai) | Team sponsor | 2026 | Inactive |
+
## Pro Sponsors — $50/mo
*[Become a Pro sponsor](https://github.com/sponsors/affaan-m) to support the project and be listed here.*
diff --git a/docs/ATLAS-CLOUD-GUIDE.md b/docs/ATLAS-CLOUD-GUIDE.md
index 83163c5b7..1221a4c82 100644
--- a/docs/ATLAS-CLOUD-GUIDE.md
+++ b/docs/ATLAS-CLOUD-GUIDE.md
@@ -1,5 +1,7 @@
# Atlas Cloud — LLM Provider Guide
+> Historical sponsor note (2026-09-10): Atlas Cloud is a past sponsor. The provider integration remains valid.
+
[Atlas Cloud](https://www.atlascloud.ai/?utm_source=github&utm_medium=link&utm_campaign=everything-claude-code) is a full-modal AI inference platform providing an OpenAI-compatible API for 59+ LLM models, image generation, and video generation.
> Run or self-host any open-source model instead of using a managed API. Itô is ECC's preferred compute sponsor: [open the Itô dashboard to sign in and rent or manage GPUs](https://compute.itomarkets.com). Any GPU provider works. That sponsorship link is passive: it does not invoke an RFQ, reserve capacity, provision compute, or configure serving. Separately, the opt-in `ecc ito find` bridge invokes the explicitly configured canonical Itô CLI and submits a live authenticated RFQ; it does not reserve capacity. Managed inference through Itô is not live yet.
diff --git a/docs/uk-UA/README.md b/docs/uk-UA/README.md
index d3057cbf8..ecc608578 100644
--- a/docs/uk-UA/README.md
+++ b/docs/uk-UA/README.md
@@ -103,12 +103,12 @@
-
-Спонсори спільноти:Mike Morgan · @jasonwu513 · @1anter · @massimotodaro · @meadmccabe
+Спонсори спільноти:Mike Morgan (неактивний) · @jasonwu513 · @1anter · @massimotodaro · @meadmccabe
+Минулі спонсори:Atlas CloudСтати спонсором · Рівні спонсорства · Програма спонсорства
@@ -735,6 +735,7 @@ ECC також постачає розширені керовані адапте
- **Ціль встановлення Kimi Code** (`--target kimi`): ECC встановлюється нативно в Kimi Code CLI від [Moonshot AI](https://www.moonshot.ai)
- **Самостійний хостинг на GPU**: перевірений шлях з [Itô](https://compute.itomarkets.com), бажаним обчислювальним спонсором ECC, включно з опційним мостом RFQ `ecc ito find` (деталі та розкриття вище в опціях встановлення)
- **Moonshot AI (Kimi), Itô та Atlas Cloud** тепер публічні спонсори
+- **Історична примітка (2026-09-10):** Atlas Cloud був минулим спонсором у період випуску 2.1 і більше не є поточним спонсором. Інтеграція провайдера залишається чинною.
- **Цілі встановлення Hermes + OpenClaw**, посібник з навігації Codex, консолідовані хуки PostToolUse та зміцнення ланцюжка поставок
### Поточна розробка: Уніфікованe сховище пам'яті
diff --git a/tests/scripts/ito-compute-sponsor.test.js b/tests/scripts/ito-compute-sponsor.test.js
index d79f7bf96..88727a89b 100644
--- a/tests/scripts/ito-compute-sponsor.test.js
+++ b/tests/scripts/ito-compute-sponsor.test.js
@@ -372,8 +372,44 @@ function main() {
assert.doesNotMatch(sponsors, /sixtytwo|sixty.?two/i);
assertExactComputeRoute(sponsors);
}],
+ ['sponsor cleanup separates current and past sponsors in both README locales', () => {
+ const readme = read('README.md');
+ const ukrainianReadme = read('docs/uk-UA/README.md');
+ const sponsors = read('SPONSORS.md');
+
+ const currentEnglish = readme.slice(
+ readme.indexOf('Partners & sponsors'),
+ readme.indexOf('Community sponsors:')
+ );
+ const currentUkrainian = ukrainianReadme.slice(
+ ukrainianReadme.indexOf('Партнери та спонсори'),
+ ukrainianReadme.indexOf('Спонсори спільноти:')
+ );
+ const currentBusiness = sponsors.slice(
+ sponsors.indexOf('## Business Sponsors'),
+ sponsors.indexOf('## Team Sponsors')
+ );
+
+ assert.doesNotMatch(currentEnglish, /Atlas Cloud|atlascloud/i);
+ assert.doesNotMatch(currentUkrainian, /Atlas Cloud|atlascloud/i);
+ assert.doesNotMatch(currentBusiness, /Atlas Cloud|atlascloud/i);
+ assert.match(readme, /Past sponsors:.*Atlas Cloud/);
+ assert.match(sponsors, /## Past Sponsors/);
+ assert.match(sponsors, /Atlas Cloud/);
+ assert.match(sponsors, /Mike Morgan.*inactive/i);
+ assert.match(readme, /Historical note[^\n]*Atlas Cloud was a past sponsor/);
+ assert.match(
+ ukrainianReadme,
+ /Історична примітка[^\n]*Atlas Cloud був минулим спонсором/
+ );
+ }],
['inference guide distinguishes rental compute from managed serving', () => {
- assertHonestComputeCopy(read('docs/ATLAS-CLOUD-GUIDE.md'));
+ const guide = read('docs/ATLAS-CLOUD-GUIDE.md');
+ assert.match(
+ guide,
+ /^# Atlas Cloud[\s\S]*> Historical sponsor note \(2026-09-10\): Atlas Cloud is a past sponsor\. The provider integration remains valid\./
+ );
+ assertHonestComputeCopy(guide);
}],
['harness docs route generic open-source model intent without lock-in', () => {
assertHonestComputeCopy(read('.claude-plugin/README.md'));