feat: add github-increase-copilot-user-budget script

GLOSSARY.md

@@ -0,0 +1,25 @@
+# GitHub API Scripts
+
+Standalone automation scripts for administering GitHub organizations and enterprises, including Copilot billing.
+
+## Copilot budgets
+
+**AI credit budget**:
+A dollar-denominated monthly spending limit on Copilot AI credits, enforced by blocking further usage once reached.
+_Avoid_: Quota, cap
+
+**Universal budget**:
+The AI credit budget that applies to every user in an enterprise unless overridden.
+_Avoid_: Default budget, global budget
+
+**User budget**:
+An AI credit budget set for one individual user that overrides the universal budget for that user.
+_Avoid_: Override, personal budget
+
+**Effective budget**:
+The AI credit budget that currently applies to a user, whether universal or user-specific.
+_Avoid_: Current limit
+
+**Budget increase**:
+Raising a user's effective budget by a dollar amount, or to an absolute dollar amount.
+_Avoid_: Top-up, bump

README.md

@@ -141,7 +141,7 @@ Each script is a self-contained utility designed for a specific task. Navigate t
 ### Folder Layout (Domain-Based)
 
 - `org-admin/`: `github-add-repo-collaborators-by-pattern`, `github-add-repo-permissions`, `github-archive-old-repos`, `github-auto-repo-creation`, `github-close-archived-repo-security-alerts`, `github-enable-issues`, `github-get-repo-list`, `github-import-repo`, `github-migrate-internal-repos-to-private`, `github-repo-from-template`
-- `enterprise/`: `github-add-enterprise-team-read-permissions`, `github-dockerfile-discovery`, `github-get-consumed-licenses`, `github-get-public-repos`, `github-install-enterprise-app`
+- `enterprise/`: `github-add-enterprise-team-read-permissions`, `github-dockerfile-discovery`, `github-get-consumed-licenses`, `github-get-public-repos`, `github-increase-copilot-user-budget`, `github-install-enterprise-app`
 - `reporting/`: `github-monthly-issues-report`, `github-repo-permissions-report`, `github-copilot-report`, `github-copilot-budget-advisor`
 - `personal/`: `github-organize-stars`
 
@@ -742,6 +742,48 @@ Total seats purchased: 200
 
 ---
 
+### Increase Copilot User Budget
+
+**Script:** `enterprise/github-increase-copilot-user-budget/github-increase-copilot-user-budget.sh`
+
+Raises the Copilot AI credit budget for one enterprise user. The script shows the user's effective budget and consumption, then offers +$50, +$100, +$150, +$200 and +$250 presets, a custom increase, or an absolute amount. After confirmation it updates the user's own AI credit budget, or creates one when the user is only covered by the Universal budget.
+
+**Required variables:**
+```bash
+export GITHUB_ENTERPRISE="your-enterprise-slug"
+
+# GitHub auth — use one of:
+export GITHUB_TOKEN=ghp_yourtoken    # PAT with manage_billing:enterprise scope
+# OR: token is resolved automatically from an active gh auth session with the required scope
+```
+
+**Usage:**
+```bash
+cd enterprise/github-increase-copilot-user-budget
+
+./github-increase-copilot-user-budget.sh -u octocat
+./github-increase-copilot-user-budget.sh -u octocat --increase 100 --expires 2026-12-31 -y
+./github-increase-copilot-user-budget.sh -u octocat --amount 400 --dry-run
+```
+
+**Options:**
+
+| Flag | Description | Default |
+|------|-------------|---------|
+| `-e, --enterprise SLUG` | GitHub Enterprise slug (or `$GITHUB_ENTERPRISE`) | — |
+| `-u, --user LOGIN` | GitHub username to update (or `$TARGET_USER`); prompted if omitted | — |
+| `--increase N` | Raise the limit by N whole dollars, skipping the menu | — |
+| `--amount N` | Set the limit to N whole dollars, skipping the menu | — |
+| `--expires DATE` | Expire the user budget on `YYYY-MM-DD` | none |
+| `--allow-decrease` | Permit a new limit at or below the current limit | off |
+| `--dry-run` | Show the planned change without applying it | off |
+| `-y, --yes` | Skip the confirmation prompt | off |
+
+> [!NOTE]
+> Limits are whole dollars. Without `--increase` or `--amount`, prompts require a terminal. An ambiguous match (more than one AI credit budget for the user) aborts without changes.
+
+---
+
 ### Install Enterprise App
 
 **Script:** `enterprise/github-install-enterprise-app/github-install-enterprise-app.sh`
@@ -1016,6 +1058,7 @@ Each script is published as a **composite action**, so you can reference it dire
 | `enterprise/github-add-enterprise-team-read-permissions` | Grant read permissions to an enterprise team across all orgs |
 | `enterprise/github-dockerfile-discovery` | Discover Dockerfiles and extract `FROM` instructions across all enterprise orgs |
 | `enterprise/github-get-consumed-licenses` | Report Enterprise consumed licence seat counts |
+| `enterprise/github-increase-copilot-user-budget` | Raise the Copilot AI credit budget for a single enterprise user |
 | `enterprise/github-get-public-repos` | List all public repositories across all Enterprise orgs |
 | `enterprise/github-install-enterprise-app` | Install an enterprise-owned GitHub App into an org (JWT flow) |
 | `org-admin/github-add-repo-collaborators-by-pattern` | Add collaborators to repositories matching a name pattern |

enterprise/github-increase-copilot-user-budget/action.yml

@@ -0,0 +1,59 @@
+name: 'Increase Copilot User Budget'
+description: 'Raise the GitHub Copilot AI credit budget for a single enterprise user'
+inputs:
+  github-token:
+    description: 'PAT with manage_billing:enterprise scope. Cannot be the built-in GITHUB_TOKEN.'
+    required: true
+  enterprise:
+    description: 'GitHub Enterprise slug'
+    required: true
+  user:
+    description: 'GitHub username whose budget is raised'
+    required: true
+  increase:
+    description: 'Whole dollars to add to the current limit (use this or amount)'
+    required: false
+    default: ''
+  amount:
+    description: 'Absolute new limit in whole dollars (use this or increase)'
+    required: false
+    default: ''
+  expires:
+    description: 'Optional expiry date for the user budget (YYYY-MM-DD)'
+    required: false
+    default: ''
+  allow-decrease:
+    description: 'Permit a new limit at or below the current limit'
+    required: false
+    default: 'false'
+  dry-run:
+    description: 'Show the planned change without applying it'
+    required: false
+    default: 'false'
+  api-url-prefix:
+    description: 'GitHub API base URL'
+    required: false
+    default: 'https://api.github.com'
+runs:
+  using: composite
+  steps:
+    - name: Increase Copilot user budget
+      shell: bash
+      env:
+        GITHUB_TOKEN: ${{ inputs.github-token }}
+        GITHUB_ENTERPRISE: ${{ inputs.enterprise }}
+        TARGET_USER: ${{ inputs.user }}
+        API_URL_PREFIX: ${{ inputs.api-url-prefix }}
+        INPUT_INCREASE: ${{ inputs.increase }}
+        INPUT_AMOUNT: ${{ inputs.amount }}
+        INPUT_EXPIRES: ${{ inputs.expires }}
+        INPUT_ALLOW_DECREASE: ${{ inputs.allow-decrease }}
+        INPUT_DRY_RUN: ${{ inputs.dry-run }}
+      run: |
+        ARGS=(--yes)
+        [[ -n "${INPUT_INCREASE}" ]] && ARGS+=(--increase "${INPUT_INCREASE}")
+        [[ -n "${INPUT_AMOUNT}" ]] && ARGS+=(--amount "${INPUT_AMOUNT}")
+        [[ -n "${INPUT_EXPIRES}" ]] && ARGS+=(--expires "${INPUT_EXPIRES}")
+        [[ "${INPUT_ALLOW_DECREASE}" == "true" ]] && ARGS+=(--allow-decrease)
+        [[ "${INPUT_DRY_RUN}" == "true" ]] && ARGS+=(--dry-run)
+        "${{ github.action_path }}/github-increase-copilot-user-budget.sh" "${ARGS[@]}"