> Per [AI Blitz Plan §6](../docs/global/AGENT_BOUNDARIES.md). Layer: 1-T.

# 06 — Glossary and References

## Terms

| Term | Definition |
| ---- | ---------- |
| **Application** | ArgoCD custom resource defining a deployment: source repo, chart path, values, destination cluster/namespace. |
| **AppProject** | ArgoCD custom resource defining RBAC: which repos and namespaces a team's Applications may use. `sre` and `sec` are the two projects in this repo. |
| **App-of-Applications** | Pattern where a parent Application renders child Applications via a Helm chart. Used throughout this repo. |
| **Incubator** | The parent Application YAML (`incubator/<env>/<cluster>.yaml`) that points at the generic chart + values file. One per cluster. |
| **Generic chart** | `generic-argo-apps-chart/` — Helm chart whose template generates one ArgoCD Application per `appSpec[]` entry. |
| **Values file** | `values/<env>/<cluster>-values.yaml` — defines `clusterSpec`, `argocdSpec`, `teamSpec`, and `appSpec[]` for a cluster. |
| **appSpec** | The list of tools to deploy on a cluster. The primary editing surface in this repo. |
| **chartDir** | The chart directory name under `devops-infra-helm-charts/helm-templates/`. Must exist before referencing. |
| **valuesDir** | The override directory name under `devops-infra-helm-charts/helm-overrides/<cluster>/`. Must contain `custom-values.yaml`. |
| **mungedCluster** | The shortened cluster name segment used in Application names (e.g. `k8s-central-prd-ase1` → `central-prd`). |
| **nameOverride** | Optional `appSpec` field to override the auto-generated Application name. Use only for collisions or >253-char names. |
| **ExternalName service** | Kubernetes service type used for cross-cluster DNS routing in the `external-name-service-*` directories (MCS topology). |
| **Layer 1-T** | Tool-Mediated: agent generates YAML diff and opens PR; human reviews and merges. |
| **Layer 3** | Blocked: agent must refuse and explain why. |

## Key files

| File | Purpose |
| ---- | ------- |
| [CLAUDE.md](../CLAUDE.md) | Agent entry point — read first |
| [docs/global/AGENT_BOUNDARIES.md](../docs/global/AGENT_BOUNDARIES.md) | Complete Layer 1/2/3 operation map |
| [docs/global/SANCTITY_RULES.md](../docs/global/SANCTITY_RULES.md) | R1–R12 non-negotiable rules |
| [docs/platform/schemas/values-file-schema.md](../docs/platform/schemas/values-file-schema.md) | appSpec field reference |
| [docs/platform/schemas/incubator-values-schema.md](../docs/platform/schemas/incubator-values-schema.md) | Incubator Application YAML reference |

## Sister repos

| Repo | Relationship |
| ---- | ------------ |
| `devops-infra-helm-charts` | Helm charts and `custom-values.yaml` overrides. Every `chartDir` and `valuesDir` must exist here. |
| `devops-argo-config` | Same App-of-Applications pattern but for service/application workloads, not infrastructure tooling. |