# cdd-iteration — cycle/408

**Issue:** [cnos#408](https://github.com/usurobor/cnos/issues/408) — Sub 3 of #403 (§Selection + §Lifecycle migration to CDS, B-lite thin extract).
**Cycle:** cycle/408.
**Protocol gap count:** 0.
**Findings:** 0.
**Patches landed:** 0.
**Next MCAs:** 0.
**No-patch decisions:** 0.

## Findings

None. No `cds-skill-gap` / `cds-protocol-gap` / `cds-tooling-gap` / `cds-metric-gap` / `cdd-skill-gap` / `cdd-protocol-gap` / `cdd-tooling-gap` / `cdd-metric-gap` surfaced this cycle.

## Courtesy stub rationale

Per the cycle/401 cadence rule (per `ROLES.md §4b.4` and the cycle/401 / cycle/406 / cycle/407 precedent), the `cdd-iteration.md` artifact is **required only when `protocol_gap_count > 0`**. This cycle's count is 0; this courtesy stub is filed for traceability and INDEX-aggregator consistency.

## Process observations (non-binding, filed for wave traceability)

The α-closeout friction log and β-closeout process observations note the source-pin-discovery pattern for migration cycles (when the canonical text being migrated has been quarantined by a prior rewrite, the migrating cycle must source-pin the pre-rewrite commit). This is **not** a protocol-gap — the existing `gamma/SKILL.md §2.2a` peer-enumeration discipline generalises to cover the pattern (the disciplined γ scaffold names the source pin explicitly; this cycle's `gamma-scaffold.md §"Source mining map"` did so). Filed as a wave-continuation observation for the next migration sub-cycle (#403 Sub 4 / Sub 5) — no skill patch this cycle.

## INDEX row

Filed at `.cdd/iterations/INDEX.md`:

```text
| 408 | #408 | 2026-05-22 | 0 | 0 | 0 | 0 | .cdd/unreleased/408/cdd-iteration.md |
```
