diff --git a/.github/workflows/genai-linters.yml b/.github/workflows/genai-linters.yml
index 7b53ac3a8a..5f4d18c06c 100644
--- a/.github/workflows/genai-linters.yml
+++ b/.github/workflows/genai-linters.yml
@@ -12,11 +12,7 @@ concurrency:
     group: linters-${{ github.workflow }}-${{ github.ref }}
     cancel-in-progress: true
 env:
-    GENAISCRIPT_DEFAULT_REASONING_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_REASONING_MODEL }}
-    GENAISCRIPT_DEFAULT_REASONING_SMALL_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_REASONING_SMALL_MODEL }}
-    GENAISCRIPT_DEFAULT_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_MODEL }}
-    GENAISCRIPT_DEFAULT_SMALL_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_SMALL_MODEL }}
-    GENAISCRIPT_DEFAULT_VISION_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_VISION_MODEL }}
+    GENAISCRIPT_MODEL_LINTER: ${{ vars.GENAISCRIPT_MODEL_LINTER }}
 jobs:
     build:
         runs-on: ubuntu-latest
@@ -38,7 +34,7 @@ jobs:
             - name: git stuff
               run: git fetch origin && git pull origin dev:dev
             - name: genaiscript
-              run: node packages/cli/built/genaiscript.cjs run linters --out ./temp/genai/linters -prc -m reasoning --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
+              run: node packages/cli/built/genaiscript.cjs run linters --out ./temp/genai/linters -prr -m linter --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
               continue-on-error: true
               env:
                   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/genai-pr-review.yml b/.github/workflows/genai-pr-review.yml
index a97938624c..c962d0ff77 100644
--- a/.github/workflows/genai-pr-review.yml
+++ b/.github/workflows/genai-pr-review.yml
@@ -12,11 +12,7 @@ concurrency:
     group: pr-review-${{ github.workflow }}-${{ github.ref }}
     cancel-in-progress: true
 env:
-    GENAISCRIPT_DEFAULT_REASONING_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_REASONING_MODEL }}
-    GENAISCRIPT_DEFAULT_REASONING_SMALL_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_REASONING_SMALL_MODEL }}
-    GENAISCRIPT_DEFAULT_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_MODEL }}
-    GENAISCRIPT_DEFAULT_SMALL_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_SMALL_MODEL }}
-    GENAISCRIPT_DEFAULT_VISION_MODEL: ${{ vars.GENAISCRIPT_DEFAULT_VISION_MODEL }}
+    GENAISCRIPT_MODEL_REVIEW: ${{ vars.GENAISCRIPT_MODEL_REVIEW }}
 jobs:
     build:
         runs-on: ubuntu-latest
@@ -41,11 +37,11 @@ jobs:
               run: git fetch origin && git pull origin dev:dev
             - name: genaiscript pr-describe
               continue-on-error: true
-              run: node packages/cli/built/genaiscript.cjs run pr-describe --out ./temp/genai/pr-describe -prd -m reasoning --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
+              run: node packages/cli/built/genaiscript.cjs run pr-describe --out ./temp/genai/pr-describe -prd -m review --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
               env:
                   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
             - name: genaiscript pr-review
-              run: node packages/cli/built/genaiscript.cjs run pr-review --out ./temp/genai/pr-review -prc -m reasoning --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
+              run: node packages/cli/built/genaiscript.cjs run pr-review --out ./temp/genai/pr-review -prc -m review --out-trace $GITHUB_STEP_SUMMARY --vars defaultBranch=dev
               continue-on-error: true
               env:
                   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/packages/core/src/git.ts b/packages/core/src/git.ts
index 67bb7d2678..726437345d 100644
--- a/packages/core/src/git.ts
+++ b/packages/core/src/git.ts
@@ -37,7 +37,6 @@ export class GitClient implements Git {
     readonly cwd: string
     readonly git = "git" // Git command identifier
     private _defaultBranch: string // Stores the default branch name
-    private _branch: string // Stores the current branch name
 
     constructor(cwd: string) {
         this.cwd = cwd || process.cwd()
@@ -72,12 +71,14 @@ export class GitClient implements Git {
      * @returns {Promise<string>} The default branch name.
      */
     async defaultBranch(): Promise<string> {
-        if (!this._defaultBranch) {
+        if (this._defaultBranch === undefined) {
             dbg(`fetching default branch from remote`)
-            const res = await this.exec(["remote", "show", "origin"], {})
-            this._defaultBranch = /^\s*HEAD branch:\s+(?<name>.+)\s*$/m.exec(
-                res
-            )?.groups?.name
+            const res = await this.exec(["remote", "show", "origin"], {
+                valueOnError: "",
+            })
+            this._defaultBranch =
+                /^\s*HEAD branch:\s+(?<name>.+)\s*$/m.exec(res)?.groups?.name ||
+                ""
         }
         return this._defaultBranch
     }
@@ -87,17 +88,16 @@ export class GitClient implements Git {
      * @returns
      */
     async branch(): Promise<string> {
-        if (!this._branch) {
-            dbg(`fetching current branch`)
-            const res = await this.exec(["branch", "--show-current"])
-            this._branch = res.trim()
-        }
-        return this._branch
+        dbg(`fetching current branch`)
+        const res = await this.exec(["branch", "--show-current"], {
+            valueOnError: "",
+        })
+        return res.trim()
     }
 
     async listBranches(): Promise<string[]> {
         dbg(`listing all branches`)
-        const res = await this.exec(["branch", "--list"])
+        const res = await this.exec(["branch", "--list"], { valueOnError: "" })
         return res
             .split("\n")
             .map((b) => b.trim())
@@ -112,8 +112,9 @@ export class GitClient implements Git {
      */
     async exec(
         args: string | string[],
-        options?: { label?: string }
+        options?: { label?: string; valueOnError?: string }
     ): Promise<string> {
+        const { valueOnError } = options || {}
         const opts: ShellOptions = {
             ...(options || {}),
             cwd: this.cwd,
@@ -128,6 +129,7 @@ export class GitClient implements Git {
         if (res.stdout) dbg(res.stdout)
         if (res.exitCode !== 0) {
             dbg(`error: ${res.stderr}`)
+            if (valueOnError !== undefined) return valueOnError
             throw new Error(res.stderr)
         }
         return res.stdout