diff --git a/AGENTS.md b/AGENTS.md
index aed3453cf..7cb587a22 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -26,4 +26,32 @@
 - Use `export interface` for API types, `export const Schema = z.object()` for validation
 - Prefix unused variables with underscore or use `_` for ignored parameters
 - Handle undefined values explicitly in comparisons and sorting
-- Use optional chaining (`?.`) and nullish coalescing (`??`) for safe property access
\ No newline at end of file
+- Use optional chaining (`?.`) and nullish coalescing (`??`) for safe property access
+
+## Model Configuration
+
+- Model `id` is **auto-injected** from filename (minus `.toml`) — never put `id` in TOML files
+- Same model is duplicated across provider directories with no cross-referencing
+- Schema uses `.strict()` — extra fields cause validation errors
+
+### Bedrock Naming Patterns
+- Dated models: `-v1:0` suffix (`anthropic.claude-3-5-sonnet-20241022-v1:0.toml`)
+- Latest/undated models: bare `-v1` (`anthropic.claude-opus-4-6-v1.toml`)
+- Region prefixes: `us.`, `eu.`, `global.` (default has no prefix)
+
+### Vertex AI Naming Patterns
+- Dated models: `@YYYYMMDD` (`claude-opus-4-5@20251101.toml`)
+- Latest/undated models: `@default` (`claude-opus-4-6@default.toml`)
+
+### Cost Schema
+- `cost.context_over_200k` is a nested `Cost` object for >200K token pricing
+- Cache pricing ratios: standard models use 10%/125% (read/write), regional variants may use 30%/375%
+
+### Required vs Optional Fields
+| Field | Required? | Notes |
+|-------|-----------|-------|
+| `name`, `release_date`, `last_updated` | Yes | Human-readable metadata |
+| `attachment`, `reasoning`, `tool_call`, `open_weights` | Yes | Boolean capabilities |
+| `cost`, `limit`, `modalities` | Yes | Objects with their own required fields |
+| `family`, `knowledge`, `temperature`, `structured_output` | No | Optional metadata |
+| `status` | No | Use for `"alpha"`, `"beta"`, `"deprecated"` lifecycle |
\ No newline at end of file
diff --git a/providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1:0.toml b/providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1.toml
similarity index 95%
rename from providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1:0.toml
rename to providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1.toml
index bf6fab1c3..ed8fca58f 100644
--- a/providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1:0.toml
+++ b/providers/amazon-bedrock/models/anthropic.claude-opus-4-6-v1.toml
@@ -22,7 +22,7 @@ cache_read = 1.00
 cache_write = 12.50
 
 [limit]
-context = 200_000
+context = 1_000_000
 output = 128_000
 
 [modalities]
diff --git a/providers/amazon-bedrock/models/eu.anthropic.claude-opus-4-6-v1:0.toml b/providers/amazon-bedrock/models/eu.anthropic.claude-opus-4-6-v1:0.toml
deleted file mode 100644
index f7e136ba2..000000000
--- a/providers/amazon-bedrock/models/eu.anthropic.claude-opus-4-6-v1:0.toml
+++ /dev/null
@@ -1,30 +0,0 @@
-name = "Claude Opus 4.6 (EU)"
-family = "claude-opus"
-release_date = "2026-02-05"
-last_updated = "2026-02-05"
-attachment = true
-reasoning = true
-temperature = true
-tool_call = true
-knowledge = "2025-05"
-open_weights = false
-
-[cost]
-input = 5.00
-output = 25.00
-cache_read = 1.50
-cache_write = 18.75
-
-[cost.context_over_200k]
-input = 10.00
-output = 37.50
-cache_read = 3.00
-cache_write = 37.50
-
-[limit]
-context = 200_000
-output = 128_000
-
-[modalities]
-input = ["text", "image", "pdf"]
-output = ["text"]
diff --git a/providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1:0.toml b/providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1.toml
similarity index 96%
rename from providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1:0.toml
rename to providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1.toml
index ca78c6707..36bfcc9d0 100644
--- a/providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1:0.toml
+++ b/providers/amazon-bedrock/models/global.anthropic.claude-opus-4-6-v1.toml
@@ -22,7 +22,7 @@ cache_read = 1.00
 cache_write = 12.50
 
 [limit]
-context = 200_000
+context = 1_000_000
 output = 128_000
 
 [modalities]
diff --git a/providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1:0.toml b/providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1.toml
similarity index 96%
rename from providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1:0.toml
rename to providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1.toml
index 1c8dbd4ce..b78b2ac40 100644
--- a/providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1:0.toml
+++ b/providers/amazon-bedrock/models/us.anthropic.claude-opus-4-6-v1.toml
@@ -22,7 +22,7 @@ cache_read = 3.00
 cache_write = 37.50
 
 [limit]
-context = 200_000
+context = 1_000_000
 output = 128_000
 
 [modalities]
diff --git a/providers/google-vertex-anthropic/models/claude-opus-4-6@20260205.toml b/providers/google-vertex-anthropic/models/claude-opus-4-6@20260205.toml
deleted file mode 100644
index bf6fab1c3..000000000
--- a/providers/google-vertex-anthropic/models/claude-opus-4-6@20260205.toml
+++ /dev/null
@@ -1,30 +0,0 @@
-name = "Claude Opus 4.6"
-family = "claude-opus"
-release_date = "2026-02-05"
-last_updated = "2026-02-05"
-attachment = true
-reasoning = true
-temperature = true
-tool_call = true
-knowledge = "2025-05"
-open_weights = false
-
-[cost]
-input = 5.00
-output = 25.00
-cache_read = 0.50
-cache_write = 6.25
-
-[cost.context_over_200k]
-input = 10.00
-output = 37.50
-cache_read = 1.00
-cache_write = 12.50
-
-[limit]
-context = 200_000
-output = 128_000
-
-[modalities]
-input = ["text", "image", "pdf"]
-output = ["text"]
diff --git a/providers/anthropic/models/claude-opus-4-6-20260205.toml b/providers/google-vertex-anthropic/models/claude-opus-4-6@default.toml
similarity index 95%
rename from providers/anthropic/models/claude-opus-4-6-20260205.toml
rename to providers/google-vertex-anthropic/models/claude-opus-4-6@default.toml
index bf6fab1c3..ed8fca58f 100644
--- a/providers/anthropic/models/claude-opus-4-6-20260205.toml
+++ b/providers/google-vertex-anthropic/models/claude-opus-4-6@default.toml
@@ -22,7 +22,7 @@ cache_read = 1.00
 cache_write = 12.50
 
 [limit]
-context = 200_000
+context = 1_000_000
 output = 128_000
 
 [modalities]