Add OpenAI platform: live model fetching with enrichment (provider 1)

The 4th registry row: id "openai", OPENAI_API_KEY env > auth.json
"openai" scope (login picker/paste/validation all registry-generic —
zero TUI changes needed, pinned by the picker test), base
https://api.openai.com/v1 with KIGI_OPENAI_BASE_URL override, Responses
dialect via the new PlatformWireApi spec field, enrichment-backed
metadata (wire_serves_metadata=false).

OpenAI's GET /v1/models returns bare ids and is polluted with
tts/whisper/embeddings entries: the listing is restricted to
enrichment-known TOOL-CALLING models (review caught that membership
alone admitted models.dev-known embeddings models, which would 400 on
every agentic request; dropped ids are debug-logged for launch-day
diagnosability). Context windows, effort menus, display names, and
thinking capability come from the enrichment pipeline — wiremock e2e
pins the full contract: polluted live listing + models.dev →
one Responses-backed chat model with a 400k documented context window.

Responses max-effort wiring (closes the P0c-1 debt): canonical effort
rides a CreateResponseWrapper sidecar and patch_reasoning_effort writes
it onto the serialized body at both send sites (all seven levels pinned,
xhigh/max distinct, summary preserved); normalize_effort_echo drops
echoes async-openai's typed enum cannot represent at both the non-stream
and SSE parse seams; the dead typed to_responses_api converter is
deleted. Kimi/moonshot stay byte-identical (ChatCompletions untouched,
wire_api maps to the same default; kimi wire tests green).

kimi-import now recognizes ANY registry platform host as built-in
(was hardcoded moonshot), covering openai and future rows.

crates/codegen/kigi-models/src/lib.rs

@@ -42,6 +42,15 @@ fn env_or(var: &str, compiled: &str) -> String {
     }
 }
 
+/// Inference dialect a platform speaks. Leaf-safe mirror of the sampler's
+/// `ApiBackend` (kigi-models must stay dependency-light); the shell maps it.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum PlatformWireApi {
+    ChatCompletions,
+    Responses,
+    Messages,
+}
+
 /// Where a platform's base URL is resolved from.
 enum BaseUrlSource {
     /// The Kimi Code subscription base, owned by `kigi_env`
@@ -91,6 +100,13 @@ struct PlatformSpec {
     /// window / thinking metadata — enrichment (and its network refresh) is
     /// skipped entirely for such platforms.
     wire_serves_metadata: bool,
+    /// Inference dialect (mapped to the sampler backend by the shell).
+    wire_api: PlatformWireApi,
+    /// Restrict the live listing to models the enrichment catalog knows —
+    /// for providers whose `/models` is polluted with non-chat entries
+    /// (tts/embeddings/image). Availability still requires the LIVE listing;
+    /// this only drops listing noise, never adds models.
+    restrict_to_enriched: bool,
 }
 
 const KIMI_CODE_SPEC: PlatformSpec = PlatformSpec {
@@ -105,6 +121,8 @@ const KIMI_CODE_SPEC: PlatformSpec = PlatformSpec {
     login_label: None,
     models_dev_id: Some("kimi-for-coding"),
     wire_serves_metadata: true,
+    wire_api: PlatformWireApi::ChatCompletions,
+    restrict_to_enriched: false,
 };
 
 const MOONSHOT_CN_SPEC: PlatformSpec = PlatformSpec {
@@ -122,6 +140,8 @@ const MOONSHOT_CN_SPEC: PlatformSpec = PlatformSpec {
     login_label: Some("Moonshot Open Platform (API key \u{b7} moonshot.cn)"),
     models_dev_id: Some("moonshotai-cn"),
     wire_serves_metadata: true,
+    wire_api: PlatformWireApi::ChatCompletions,
+    restrict_to_enriched: false,
 };
 
 const MOONSHOT_AI_SPEC: PlatformSpec = PlatformSpec {
@@ -139,6 +159,32 @@ const MOONSHOT_AI_SPEC: PlatformSpec = PlatformSpec {
     login_label: Some("Moonshot Open Platform (API key \u{b7} moonshot.ai)"),
     models_dev_id: Some("moonshotai"),
     wire_serves_metadata: true,
+    wire_api: PlatformWireApi::ChatCompletions,
+    restrict_to_enriched: false,
+};
+
+/// Base-URL override for OpenAI (dev/test escape hatch).
+pub const OPENAI_BASE_URL_ENV: &str = "KIGI_OPENAI_BASE_URL";
+
+const OPENAI_SPEC: PlatformSpec = PlatformSpec {
+    id: "openai",
+    display_name: "OpenAI",
+    base_url: BaseUrlSource::EnvOr {
+        env: OPENAI_BASE_URL_ENV,
+        default: "https://api.openai.com/v1",
+    },
+    uses_oauth: false,
+    allowed_model_prefixes: None,
+    api_key_envs: &["OPENAI_API_KEY"],
+    vendor: "OpenAI",
+    console_host: Some("platform.openai.com"),
+    login_label: Some("OpenAI (API key)"),
+    models_dev_id: Some("openai"),
+    // GET /v1/models returns bare ids only (no context/thinking metadata)
+    // and is polluted with tts/embeddings/image entries.
+    wire_serves_metadata: false,
+    wire_api: PlatformWireApi::Responses,
+    restrict_to_enriched: true,
 };
 
 /// The platform registry. Platforms are compiled-in spec rows; there is no
@@ -151,12 +197,19 @@ pub enum PlatformId {
     MoonshotCn,
     /// Moonshot AI open platform, api.moonshot.ai (API key).
     MoonshotAi,
+    /// OpenAI platform API (API key, Responses dialect).
+    OpenAi,
 }
 
 impl PlatformId {
     /// All platforms, in catalog precedence order: the subscription channel
     /// first so "default model = first list item" favors it when present.
-    pub const ALL: [PlatformId; 3] = [Self::KimiCode, Self::MoonshotCn, Self::MoonshotAi];
+    pub const ALL: [PlatformId; 4] = [
+        Self::KimiCode,
+        Self::MoonshotCn,
+        Self::MoonshotAi,
+        Self::OpenAi,
+    ];
 
     /// The registry row backing this platform (single source of per-platform
     /// data; every accessor below reads it).
@@ -165,6 +218,7 @@ impl PlatformId {
             Self::KimiCode => &KIMI_CODE_SPEC,
             Self::MoonshotCn => &MOONSHOT_CN_SPEC,
             Self::MoonshotAi => &MOONSHOT_AI_SPEC,
+            Self::OpenAi => &OPENAI_SPEC,
         }
     }
 
@@ -243,6 +297,17 @@ impl PlatformId {
     pub fn wire_serves_metadata(self) -> bool {
         self.spec().wire_serves_metadata
     }
+
+    /// Inference dialect this platform speaks (shell maps to `ApiBackend`).
+    pub fn wire_api(self) -> PlatformWireApi {
+        self.spec().wire_api
+    }
+
+    /// Restrict the live listing to enrichment-known models (drops non-chat
+    /// listing noise on polluted providers). Never adds models.
+    pub fn restrict_to_enriched(self) -> bool {
+        self.spec().restrict_to_enriched
+    }
 }
 
 /// Split a managed catalog key `{platform_id}/{model_id}` back into its
@@ -573,9 +638,10 @@ mod tests {
                 PlatformId::KimiCode => 0,
                 PlatformId::MoonshotCn => 1,
                 PlatformId::MoonshotAi => 2,
+                PlatformId::OpenAi => 3,
             }
         }
-        const VARIANT_COUNT: usize = 3; // update together with `ordinal`
+        const VARIANT_COUNT: usize = 4; // update together with `ordinal`
         let mut seen: Vec<usize> = PlatformId::ALL.iter().map(|&p| ordinal(p)).collect();
         seen.sort_unstable();
         seen.dedup();

crates/codegen/kigi-sampler/src/client.rs

@@ -70,6 +70,9 @@ fn deserialize_response_event(data: &str) -> Result<rs::ResponseStreamEvent> {
         Err(first_err) => {
             // Try sanitizing: parse as Value, strip unknown tools, retry.
             if let Ok(mut value) = serde_json::from_str::<serde_json::Value>(data) {
+                // A `max` reasoning-effort echo is unrepresentable in the
+                // typed enum; drop it so the event parses.
+                kigi_sampling_types::normalize_effort_echo(&mut value);
                 // Strip tools that async_openai's rs::Tool can't deserialize
                 // (e.g., xAI-specific "x_search"). Instead of maintaining a
                 // hardcoded allowlist, try deserializing each tool entry —
@@ -1028,6 +1031,7 @@ impl SamplingClient {
         // it in post-serialize. This is the last surviving piece of the
         // old raw_output machinery.
         kigi_sampling_types::patch_reasoning_text_types(&mut request_body);
+        kigi_sampling_types::patch_reasoning_effort(&mut request_body, request.reasoning_effort);
         let http_request = self.post(self.endpoint("responses")).json(&request_body);
 
         let response = http_request.send().await.map_err(|e| {
@@ -1074,7 +1078,16 @@ impl SamplingClient {
             });
         }
 
-        let response_obj = serde_json::from_slice::<rs::Response>(&bytes).map_err(|e| {
+        let mut response_value =
+            serde_json::from_slice::<serde_json::Value>(&bytes).map_err(|e| {
+                let raw_body = String::from_utf8_lossy(&bytes);
+                tracing::error!(error = %e, raw_body = %raw_body, "Response body is not JSON");
+                SamplingError::Serialization(e)
+            })?;
+        // A `max` effort echo is unrepresentable in the typed enum — drop it
+        // rather than failing the whole response.
+        kigi_sampling_types::normalize_effort_echo(&mut response_value);
+        let response_obj = serde_json::from_value::<rs::Response>(response_value).map_err(|e| {
             let raw_body = String::from_utf8_lossy(&bytes);
             tracing::error!(
                 error = %e,
@@ -1156,6 +1169,7 @@ impl SamplingClient {
             }
         }
         kigi_sampling_types::patch_reasoning_text_types(&mut request_body);
+        kigi_sampling_types::patch_reasoning_effort(&mut request_body, request.reasoning_effort);
         // Fresh per attempt so signals never leak across retries; `None`
         // (check disabled) sends no header and does no peek work per event.
         let doom_loop = self
@@ -1687,6 +1701,7 @@ impl SamplingClient {
         let responses_request: rs::CreateResponse = (&request).into();
 
         let mut wrapper = CreateResponseWrapper::new(responses_request);
+        wrapper.reasoning_effort = request.reasoning_effort;
         wrapper.x_kigi_conv_id = x_kigi_conv_id;
         wrapper.x_kigi_req_id = x_kigi_req_id;
         wrapper.x_kigi_session_id = x_kigi_session_id;
@@ -1720,6 +1735,7 @@ impl SamplingClient {
         let responses_request: rs::CreateResponse = (&request).into();
 
         let mut wrapper = CreateResponseWrapper::new(responses_request);
+        wrapper.reasoning_effort = request.reasoning_effort;
         wrapper.x_kigi_conv_id = x_kigi_conv_id;
         wrapper.x_kigi_req_id = x_kigi_req_id;
         wrapper.x_kigi_session_id = x_kigi_session_id;

crates/codegen/kigi-sampling-types/src/conversation.rs

@@ -2158,7 +2158,10 @@ impl From<&ConversationRequest> for rs::CreateResponse {
             prompt_cache_key: None,
             prompt_cache_retention: None,
             reasoning: Some(rs::Reasoning {
-                effort: req.reasoning_effort.map(|e| e.to_responses_api()),
+                // Effort is written onto the serialized body by
+                // `patch_reasoning_effort` (the typed enum cannot spell
+                // `max`); the wrapper carries the canonical value.
+                effort: None,
                 summary: Some(rs::ReasoningSummary::Concise),
             }),
             safety_identifier: None,
@@ -5191,6 +5194,10 @@ mod tests {
 
     #[test]
     fn test_responses_request_carries_reasoning_effort_nested() {
+        // Wire contract since the Max split: the typed conversion leaves
+        // reasoning.effort UNSET (async-openai's enum cannot spell `max`);
+        // `patch_reasoning_effort` writes the canonical token onto the
+        // serialized body — every level, `xhigh` and `max` distinct.
         for (variant, expected) in [
             (crate::ReasoningEffort::None, "none"),
             (crate::ReasoningEffort::Minimal, "minimal"),
@@ -5198,6 +5205,7 @@ mod tests {
             (crate::ReasoningEffort::Medium, "medium"),
             (crate::ReasoningEffort::High, "high"),
             (crate::ReasoningEffort::Xhigh, "xhigh"),
+            (crate::ReasoningEffort::Max, "max"),
         ] {
             let req = ConversationRequest {
                 reasoning_effort: Some(variant),
@@ -5205,15 +5213,56 @@ mod tests {
                     .with_model("test")
             };
             let resp: crate::rs::CreateResponse = (&req).into();
-            let json = serde_json::to_value(&resp).unwrap();
+            let mut json = serde_json::to_value(&resp).unwrap();
+            assert_eq!(
+                json.pointer("/reasoning/effort"),
+                None,
+                "typed conversion must leave effort unset ({variant:?})"
+            );
+            crate::patch_reasoning_effort(&mut json, req.reasoning_effort);
             assert_eq!(
                 json.pointer("/reasoning/effort").and_then(|v| v.as_str()),
                 Some(expected),
-                "{variant:?} should serialize as reasoning.effort={expected:?}; got: {json:#}",
+                "{variant:?} should be patched as reasoning.effort={expected:?}; got: {json:#}",
+            );
+            assert_eq!(
+                json.pointer("/reasoning/summary").and_then(|v| v.as_str()),
+                Some("concise"),
+                "the patch must not clobber reasoning.summary"
             );
         }
     }
 
+    #[test]
+    fn normalize_effort_echo_drops_only_unrepresentable_tokens() {
+        // `max` echo (bare response shape) is dropped so typed parsing
+        // succeeds; known tokens pass through; stream-event envelopes are
+        // handled via /response/reasoning.
+        let mut bare = serde_json::json!({ "reasoning": { "effort": "max", "summary": "c" } });
+        crate::normalize_effort_echo(&mut bare);
+        assert_eq!(bare.pointer("/reasoning/effort"), None);
+        assert_eq!(
+            bare.pointer("/reasoning/summary").and_then(|v| v.as_str()),
+            Some("c")
+        );
+
+        let mut known = serde_json::json!({ "reasoning": { "effort": "high" } });
+        crate::normalize_effort_echo(&mut known);
+        assert_eq!(
+            known.pointer("/reasoning/effort").and_then(|v| v.as_str()),
+            Some("high"),
+            "representable echoes must pass through"
+        );
+
+        let mut event = serde_json::json!({ "response": { "reasoning": { "effort": "max" } } });
+        crate::normalize_effort_echo(&mut event);
+        assert_eq!(event.pointer("/response/reasoning/effort"), None);
+
+        let mut absent = serde_json::json!({ "output": [] });
+        crate::normalize_effort_echo(&mut absent);
+        assert_eq!(absent, serde_json::json!({ "output": [] }));
+    }
+
     #[test]
     fn test_responses_request_omits_effort_when_unset() {
         let req =

crates/codegen/kigi-sampling-types/src/types.rs

@@ -794,34 +794,11 @@ pub enum ReasoningEffort {
 }
 
 impl ReasoningEffort {
-    pub fn to_responses_api(self) -> crate::rs::ReasoningEffort {
+    /// The canonical effort behind a typed Responses-API echo
-        match self {
+    /// (`response.reasoning.effort`). `max` echoes never reach the typed
-            Self::None => crate::rs::ReasoningEffort::None,
+    /// enum — [`normalize_effort_echo`] drops them pre-parse (async-openai
-            Self::Minimal => crate::rs::ReasoningEffort::Minimal,
+    /// has no such variant); the request direction writes the wire string
-            Self::Low => crate::rs::ReasoningEffort::Low,
+    /// via [`patch_reasoning_effort`].
-            Self::Medium => crate::rs::ReasoningEffort::Medium,
-            Self::High => crate::rs::ReasoningEffort::High,
-            Self::Xhigh => crate::rs::ReasoningEffort::Xhigh,
-            // INTERIM: async-openai (0.33 pinned; upstream through 0.41
-            // still lacks it) has no `Max` variant. The Responses backend
-            // gains true `max` via a post-serialize body patch in the OpenAI
-            // provider cycle; until then Max downgrades to xhigh — reachable
-            // via `[model.*] reasoning_effort = "max"` on a responses-backend
-            // model, hence the loud warn.
-            Self::Max => {
-                tracing::warn!(
-                    "reasoning effort `max` downgraded to `xhigh` on the \
-                     Responses backend (typed wire enum has no max yet)"
-                );
-                crate::rs::ReasoningEffort::Xhigh
-            }
-        }
-    }
-
-    /// Inverse of [`to_responses_api`](Self::to_responses_api): the effort the
-    /// Responses API echoes back on `response.reasoning.effort`. (`max`
-    /// echoes cannot reach here — async-openai's enum has no such variant;
-    /// the OpenAI provider cycle handles them before typed parsing.)
     pub fn from_responses_api(effort: crate::rs::ReasoningEffort) -> Self {
         match effort {
             crate::rs::ReasoningEffort::None => Self::None,
@@ -911,6 +888,52 @@ where
     }))
 }
 
+/// Write the canonical effort onto a serialized Responses request body
+/// (`body.reasoning.effort`). This is the ONLY place effort reaches the
+/// Responses wire: the typed `rs::ReasoningEffort` tops out at `xhigh`, so
+/// `max` must be written post-serialize. A `None` effort leaves the body
+/// untouched (the provider default applies).
+pub fn patch_reasoning_effort(body: &mut Value, effort: Option<ReasoningEffort>) {
+    let Some(effort) = effort else { return };
+    let Some(obj) = body.as_object_mut() else {
+        return;
+    };
+    let reasoning = obj
+        .entry("reasoning")
+        .or_insert_with(|| Value::Object(serde_json::Map::new()));
+    if let Some(reasoning) = reasoning.as_object_mut() {
+        reasoning.insert(
+            "effort".to_string(),
+            Value::String(effort.as_str().to_string()),
+        );
+    }
+}
+
+/// Neutralize a `reasoning.effort` echo the typed `rs` enum cannot parse
+/// (`max`): remove it so response deserialization succeeds. The turn's
+/// canonical effort lives in the session sampling config regardless; only
+/// the per-item echo metadata is dropped, recorded as not-echoed.
+/// (Ceiling: async-openai lacks a Max variant; delete this when it grows
+/// one.) Handles both bare response bodies (`/reasoning/effort`) and
+/// stream-event envelopes (`/response/reasoning/effort`).
+pub fn normalize_effort_echo(value: &mut Value) {
+    for path in ["/reasoning", "/response/reasoning"] {
+        if let Some(reasoning) = value.pointer_mut(path).and_then(|v| v.as_object_mut())
+            && let Some(effort) = reasoning.get("effort").and_then(|v| v.as_str())
+            && crate::rs::ReasoningEffort::deserialize(serde_json::Value::String(
+                effort.to_string(),
+            ))
+            .is_err()
+        {
+            tracing::debug!(
+                effort,
+                "reasoning.effort echo unrepresentable in the typed enum; dropping"
+            );
+            reasoning.remove("effort");
+        }
+    }
+}
+
 pub const REASONING_EFFORT_META_KEY: &str = "reasoningEffort";
 pub const SUPPORTS_REASONING_EFFORT_META_KEY: &str = "supportsReasoningEffort";
 
@@ -1126,6 +1149,12 @@ pub struct CreateResponseWrapper {
     /// The inner Responses API request.
     pub inner: crate::rs::CreateResponse,
 
+    /// Canonical reasoning effort for this request. The typed
+    /// `inner.reasoning.effort` stays `None` (async-openai's enum cannot
+    /// spell `max`); [`patch_reasoning_effort`] writes this value onto the
+    /// serialized body just before send.
+    pub reasoning_effort: Option<ReasoningEffort>,
+
     /// Custom header: conversation ID for tracking.
     pub x_kigi_conv_id: Option<String>,
 
@@ -1152,6 +1181,7 @@ impl CreateResponseWrapper {
     pub fn new(inner: crate::rs::CreateResponse) -> Self {
         Self {
             inner,
+            reasoning_effort: None,
             x_kigi_conv_id: None,
             x_kigi_req_id: None,
             x_kigi_session_id: None,

crates/codegen/kigi-shell/src/agent/auth_method.rs

@@ -583,7 +583,8 @@ mod tests {
                 XAI_API_KEY_METHOD_ID,
                 KIMI_CODE_METHOD_ID,
                 MOONSHOT_CN_METHOD_ID,
-                MOONSHOT_AI_METHOD_ID
+                MOONSHOT_AI_METHOD_ID,
+                "openai"
             ]
         );
         assert_eq!(default_id(&built), Some(XAI_API_KEY_METHOD_ID));
@@ -609,7 +610,8 @@ mod tests {
                 CACHED_TOKEN_AUTH_METHOD_ID,
                 KIMI_CODE_METHOD_ID,
                 MOONSHOT_CN_METHOD_ID,
-                MOONSHOT_AI_METHOD_ID
+                MOONSHOT_AI_METHOD_ID,
+                "openai"
             ]
         );
         assert_eq!(default_id(&built), Some(CACHED_TOKEN_AUTH_METHOD_ID));
@@ -628,7 +630,8 @@ mod tests {
                 CACHED_TOKEN_AUTH_METHOD_ID,
                 KIMI_CODE_METHOD_ID,
                 MOONSHOT_CN_METHOD_ID,
-                MOONSHOT_AI_METHOD_ID
+                MOONSHOT_AI_METHOD_ID,
+                "openai"
             ]
         );
         assert_eq!(default_id(&built), Some(CACHED_TOKEN_AUTH_METHOD_ID));
@@ -650,7 +653,8 @@ mod tests {
             vec![
                 KIMI_CODE_METHOD_ID,
                 MOONSHOT_CN_METHOD_ID,
-                MOONSHOT_AI_METHOD_ID
+                MOONSHOT_AI_METHOD_ID,
+                "openai"
             ]
         );
         assert_eq!(default_id(&built), None);

crates/codegen/kigi-shell/src/agent/enrichment_fetch.rs

@@ -57,8 +57,15 @@ fn registry_models_dev_ids() -> BTreeSet<&'static str> {
         .collect()
 }
 
+/// Cache dir override (tests re-home the cache away from the real
+/// `~/.kigi` — same pattern as `KIGI_MODELS_CACHE_DIR`).
+pub(crate) const MODELS_DEV_CACHE_DIR_ENV: &str = "KIGI_MODELS_DEV_CACHE_DIR";
+
 fn cache_path() -> std::path::PathBuf {
-    crate::util::kigi_home::kigi_home().join(CACHE_FILE)
+    match std::env::var(MODELS_DEV_CACHE_DIR_ENV) {
+        Ok(dir) if !dir.trim().is_empty() => std::path::PathBuf::from(dir).join(CACHE_FILE),
+        _ => crate::util::kigi_home::kigi_home().join(CACHE_FILE),
+    }
 }
 
 fn refresh_url() -> Option<String> {
@@ -198,13 +205,21 @@ mod tests {
 
     /// Wire-served-only platform sets never trigger IO — and never force the
     /// bundled parse (empty owned catalog; the merge branch is gated off).
+    /// Kimi/Moonshot users therefore keep a zero-egress, zero-cache fetch
+    /// path even now that enrichment-needing platforms (OpenAI) exist.
     #[test]
     fn wire_served_platforms_get_empty_catalog_without_io() {
-        assert!(!any_platform_needs_enrichment(
+        let wire_served = [
-            &kigi_models::PlatformId::ALL
+            kigi_models::PlatformId::KimiCode,
-        ));
+            kigi_models::PlatformId::MoonshotCn,
-        let catalog = load_enrichment_catalog(&kigi_models::PlatformId::ALL);
+            kigi_models::PlatformId::MoonshotAi,
+        ];
+        assert!(!any_platform_needs_enrichment(&wire_served));
+        let catalog = load_enrichment_catalog(&wire_served);
         assert!(catalog.is_empty());
+        // The full registry now DOES need enrichment (OpenAI is
+        // wire_serves_metadata=false) — the fast path must not hide that.
+        assert!(any_platform_needs_enrichment(&kigi_models::PlatformId::ALL));
     }
 
     fn cache_file_in(dir: &tempfile::TempDir) -> std::path::PathBuf {

crates/codegen/kigi-shell/src/agent/models.rs

@@ -141,6 +141,14 @@ impl PlatformApiKeys {
         }
         Self { keys }
     }
+
+    /// Test-only constructor for a single API-key platform.
+    #[cfg(test)]
+    pub(crate) fn test_single(platform: kigi_models::PlatformId, key: &str) -> Self {
+        Self {
+            keys: std::collections::BTreeMap::from([(platform, key.to_owned())]),
+        }
+    }
 }
 
 pub(crate) fn task_model_error_for_catalog(

crates/codegen/kigi-shell/src/agent/models_fetch.rs

@@ -284,7 +284,7 @@ fn fetch_one_platform_models(
         .map(|s| s.to_string());
     let listing: kigi_models::WireModelsResponse = response.json()?;
     let total = listing.data.len();
-    let filtered = kigi_models::filter_allowed_models(platform, listing.data);
+    let mut filtered = kigi_models::filter_allowed_models(platform, listing.data);
     if filtered.len() != total {
         tracing::info!(
             platform = platform.as_str(),
@@ -293,6 +293,51 @@ fn fetch_one_platform_models(
             "applied platform model-prefix filter"
         );
     }
+    // Polluted listings (tts/embeddings/image entries) are restricted to
+    // models the enrichment catalog knows. FAIL-SAFE: if enrichment has no
+    // data for this provider at all (refresh broken AND snapshot gap), keep
+    // the full listing with a warning — a noisy picker beats an empty one.
+    if platform.restrict_to_enriched()
+        && let Some(dev_id) = platform.models_dev_id()
+    {
+        let provider_known = enrichment.get(dev_id).is_some_and(|m| !m.is_empty());
+        if provider_known {
+            let before = filtered.len();
+            let mut dropped: Vec<String> = Vec::new();
+            // Keep only tool-calling chat models: membership alone would
+            // admit models.dev-known embeddings/moderation entries, which
+            // would 400 on every agentic request (EnrichmentModel.tool_call
+            // exists exactly for this cut).
+            filtered.retain(|wire| {
+                let keep = kigi_models::enrichment::lookup(enrichment, dev_id, &wire.id)
+                    .is_some_and(|meta| meta.tool_call);
+                if !keep {
+                    dropped.push(wire.id.clone());
+                }
+                keep
+            });
+            if filtered.len() != before {
+                tracing::info!(
+                    platform = platform.as_str(),
+                    before,
+                    kept = filtered.len(),
+                    "restricted listing to tool-calling enrichment-known models"
+                );
+                // A launch-day model missing from enrichment lands here for
+                // up to models.dev lag + cache TTL — keep the ids traceable.
+                tracing::debug!(
+                    platform = platform.as_str(),
+                    dropped = ?dropped,
+                    "listing ids dropped by the enrichment restriction"
+                );
+            }
+        } else {
+            tracing::warn!(
+                platform = platform.as_str(),
+                "no enrichment data for provider; keeping full listing"
+            );
+        }
+    }
     let base_url = if platform.uses_oauth() {
         endpoints.proxy_url()
     } else {
@@ -329,8 +374,9 @@ fn fetch_one_platform_models(
 /// Map a live `think_efforts` block to catalog effort options. The wire
 /// token stays the option id/label (`"max"` → label `"Max"`) so the UI
 /// mirrors the server's vocabulary, while the canonical value maps through
-/// the [`kigi_sampling_types::ReasoningEffort`] parser (`"max"` → `Xhigh`).
+/// the [`kigi_sampling_types::ReasoningEffort`] parser (`"max"` → `Max`
-/// Unknown tokens are dropped with a warning rather than inventing a level.
+/// since the Xhigh/Max split). Unknown tokens are dropped with a warning
+/// rather than inventing a level.
 fn think_efforts_to_options(
     think: &kigi_models::WireThinkEfforts,
 ) -> Vec<kigi_sampling_types::ReasoningEffortOption> {
@@ -379,6 +425,13 @@ pub(crate) fn platform_wire_model_to_entry(
     });
     let env_key = (!platform.uses_oauth())
         .then(|| crate::agent::config::EnvKeys::new(platform.api_key_env_names().iter().copied()));
+    let api_backend = match platform.wire_api() {
+        kigi_models::PlatformWireApi::ChatCompletions => {
+            crate::sampling::ApiBackend::ChatCompletions
+        }
+        kigi_models::PlatformWireApi::Responses => crate::sampling::ApiBackend::Responses,
+        kigi_models::PlatformWireApi::Messages => crate::sampling::ApiBackend::Messages,
+    };
     crate::agent::config::ModelEntryConfig {
         id: Some(platform.managed_model_key(&wire.id)),
         name: Some(wire.display_name.clone().unwrap_or_else(|| wire.id.clone())),
@@ -390,7 +443,7 @@ pub(crate) fn platform_wire_model_to_entry(
         top_p: None,
         api_key: None,
         env_key,
-        api_backend: Default::default(),
+        api_backend,
         auth_scheme: None,
         reasoning_effort: think_efforts
             .and_then(|t| t.default_effort.as_deref())
@@ -662,6 +715,127 @@ fn get_string_map(
 #[cfg(test)]
 mod tests {
     use super::*;
+
+    /// OpenAI-cycle e2e (mock wire): a polluted bare-id `/models` listing +
+    /// a models.dev refresh produce a catalog with ONLY chat models, enriched
+    /// context windows / efforts, and the Responses backend — the full
+    /// "live list + documented metadata" contract.
+    #[tokio::test(flavor = "multi_thread")]
+    #[serial_test::serial]
+    async fn openai_listing_is_enriched_filtered_and_responses_backed() {
+        let platform_server = wiremock::MockServer::start().await;
+        wiremock::Mock::given(wiremock::matchers::method("GET"))
+            .and(wiremock::matchers::path("/models"))
+            .and(wiremock::matchers::header("Authorization", "Bearer sk-oai"))
+            .respond_with(wiremock::ResponseTemplate::new(200).set_body_json(
+                serde_json::json!({ "data": [
+                    { "id": "gpt-5-test", "object": "model", "owned_by": "openai" },
+                    { "id": "whisper-1", "object": "model", "owned_by": "openai" },
+                    { "id": "text-embedding-tiny", "object": "model" }
+                ]}),
+            ))
+            .expect(1)
+            .mount(&platform_server)
+            .await;
+        let modelsdev_server = wiremock::MockServer::start().await;
+        wiremock::Mock::given(wiremock::matchers::method("GET"))
+            .and(wiremock::matchers::path("/api.json"))
+            .respond_with(wiremock::ResponseTemplate::new(200).set_body_json(
+                serde_json::json!({ "openai": { "models": {
+                    "gpt-5-test": {
+                        "name": "GPT-5 Test",
+                        "reasoning": true,
+                        "reasoning_options": [
+                            {"type": "effort", "values": ["low", "medium", "high"]}
+                        ],
+                        "limit": {"context": 400000, "output": 128000},
+                        "modalities": {"input": ["text", "image"]},
+                        "tool_call": true
+                    },
+                    // models.dev KNOWS embeddings models — membership alone
+                    // must not admit them; the tool_call cut does.
+                    "text-embedding-tiny": {
+                        "limit": {"context": 8191}
+                    }
+                }}}),
+            ))
+            .expect(1)
+            .mount(&modelsdev_server)
+            .await;
+        let cache_dir = tempfile::tempdir().unwrap();
+        let _base = kigi_test_support::EnvGuard::set(
+            kigi_models::OPENAI_BASE_URL_ENV,
+            platform_server.uri(),
+        );
+        let _mdev = kigi_test_support::EnvGuard::set(
+            crate::agent::enrichment_fetch::MODELS_DEV_URL_ENV,
+            format!("{}/api.json", modelsdev_server.uri()),
+        );
+        let _mdev_cache = kigi_test_support::EnvGuard::set(
+            crate::agent::enrichment_fetch::MODELS_DEV_CACHE_DIR_ENV,
+            cache_dir.path(),
+        );
+
+        let endpoints = crate::agent::config::EndpointsConfig::default();
+        let keys = crate::agent::models::PlatformApiKeys::test_single(
+            kigi_models::PlatformId::OpenAi,
+            "sk-oai",
+        );
+        let result = tokio::task::spawn_blocking(move || {
+            fetch_platform_models_blocking(&endpoints, None, &keys)
+        })
+        .await
+        .unwrap()
+        .expect("fetch must succeed");
+
+        assert_eq!(
+            result
+                .models
+                .iter()
+                .map(|m| m.id.as_deref().unwrap_or_default())
+                .collect::<Vec<_>>(),
+            vec!["openai/gpt-5-test"],
+            "pollution must be filtered: whisper (enrichment-unknown) AND \
+             text-embedding-tiny (enrichment-known but not tool-calling)"
+        );
+        let entry = &result.models[0];
+        assert_eq!(
+            entry.context_window.get(),
+            400_000,
+            "context window must come from enrichment (wire had none)"
+        );
+        assert_eq!(
+            entry.api_backend,
+            crate::sampling::ApiBackend::Responses,
+            "OpenAI entries must use the Responses backend"
+        );
+        assert_eq!(entry.name.as_deref(), Some("GPT-5 Test"));
+        assert!(entry.supports_reasoning_effort, "efforts must be filled");
+        assert_eq!(
+            entry
+                .reasoning_efforts
+                .iter()
+                .map(|o| o.id.as_str())
+                .collect::<Vec<_>>(),
+            vec!["low", "medium", "high"]
+        );
+        assert!(
+            entry
+                .capabilities
+                .contains(&kigi_models::ModelCapability::Thinking),
+            "enrichment reasoning flag must derive the thinking capability"
+        );
+        assert_eq!(
+            entry.env_key,
+            Some(crate::agent::config::EnvKeys::single("OPENAI_API_KEY")),
+            "entries carry the env NAME (never key values)"
+        );
+        assert!(
+            cache_dir.path().join("models_dev_cache.json").exists(),
+            "the refresh must be cached in the overridden dir"
+        );
+    }
+
     #[test]
     fn get_env_keys_parses_strings_and_rejects_non_strings() {
         use crate::agent::config::EnvKeys;
@@ -1161,6 +1335,10 @@ mod tests {
             platform_models_url(kigi_models::PlatformId::MoonshotAi, &cfg),
             "https://api.moonshot.ai/v1/models"
         );
+        assert_eq!(
+            platform_models_url(kigi_models::PlatformId::OpenAi, &cfg),
+            "https://api.openai.com/v1/models"
+        );
         // Proxy override re-points the subscription platform only.
         let proxied = EndpointsConfig::from_config_value(
             &toml::from_str(

crates/codegen/kigi-shell/src/kimi_import.rs

@@ -160,18 +160,22 @@ struct KimiProviderToml {
 }
 
 /// Built-in kigi platform a kimi provider duplicates, if any: provider type
-/// `kimi` is the Kimi Code subscription channel; the two Moonshot open
+/// `kimi` is the Kimi Code subscription channel; API-key platforms are
-/// platforms are recognized by their fixed production hosts (the same hosts
+/// recognized by their production hosts (the same hosts
-/// `kigi_models::PlatformId::base_url` compiles in).
+/// `kigi_models::PlatformId::base_url` compiles in — moonshot, openai, and
+/// every future registry row automatically).
 fn builtin_platform(provider: &KimiProviderToml) -> Option<PlatformId> {
     if provider.provider_type == "kimi" {
         return Some(PlatformId::KimiCode);
     }
-    match url_host(&provider.base_url) {
+    let host = url_host(&provider.base_url)?;
-        Some("api.moonshot.cn") => Some(PlatformId::MoonshotCn),
+    PlatformId::ALL.into_iter().find(|platform| {
-        Some("api.moonshot.ai") => Some(PlatformId::MoonshotAi),
+        if platform.uses_oauth() {
-        _ => None,
+            return false;
-    }
+        }
+        let base = platform.base_url();
+        url_host(&base) == Some(host)
+    })
 }
 
 /// Host component of an http(s) URL. `None` for other schemes.

crates/codegen/kigi-tui/src/app/app_view.rs

@@ -6894,7 +6894,7 @@ pub(crate) mod tests {
     #[test]
     fn pending_menu_items_lists_interactive_methods_plus_quit() {
         let items = pending_menu_items(&fresh_user_auth_methods(), None);
-        assert_eq!(items.len(), 4, "3 login rows + Quit, got {items:?}");
+        assert_eq!(items.len(), 5, "4 login rows + Quit, got {items:?}");
         assert!(
             matches!(&items[0], PendingMenuItem::Login { label } if label == "Kimi Code (OAuth)"),
             "row 0 must be the OAuth login, got {:?}",
@@ -6914,7 +6914,15 @@ pub(crate) mod tests {
                 label: "Moonshot Open Platform (API key \u{b7} moonshot.ai)".into(),
             }
         );
-        assert_eq!(items[3], PendingMenuItem::Quit);
+        assert_eq!(
+            items[3],
+            PendingMenuItem::ApiKey {
+                target: PlatformLogin(kigi_shell::models::PlatformId::OpenAi),
+                label: "OpenAI (API key)".into(),
+            },
+            "new registry rows must appear in the picker with zero TUI changes"
+        );
+        assert_eq!(items[4], PendingMenuItem::Quit);
         // The non-interactive methods must never appear as rows.
         let byok = kigi_shell::agent::auth_method::build_auth_methods(
             kigi_shell::agent::auth_method::AuthMethodsBuildInputs {
@@ -6925,7 +6933,7 @@ pub(crate) mod tests {
         );
         assert_eq!(
             pending_menu_items(&byok.methods, None).len(),
-            4,
+            5,
             "xai.api_key / cached_token must not add rows"
         );
     }