docs: archive completed taxonomy and Sonnet routing plans

docs/adr/0006-primary-host-and-ambidextrous-mirroring.md

@@ -7,7 +7,7 @@
   as `claude-sonnet-5`; Anthropic's first-party benchmarks show it strictly ahead on every axis
   checked). `claude-sonnet-5` is retained at `tier: 'prior'` for user pins, so a pinned route now
   mirrors to `gpt-5.6-sol`, not `gpt-6-sol` — the same behavior the Opus 5 → Opus 5.5 move
-  established. See `docs/plans/2026-09-28-sonnet-5-5-routing-refresh.md`.
+  established. See `docs/archive/2026-09-28-plan-sonnet-5-5-routing-refresh.md`.
 - **Earlier update (2026-09-23):** Tier parity: both hosts now have a `reasoning` tier (`claude-opus-5-5` ↔
   `gpt-6-astra`), so a Codex-driven seed gets reasoning-tier models and an escalation that steps up a
   tier, as a Claude-driven seed does. A catalog entry may `pairs` with an extra tier.

docs/plans/2026-09-28-docs-taxonomy-and-archive.md → docs/archive/2026-09-28-plan-docs-taxonomy-and-archive.md

@@ -17,7 +17,7 @@
 **Spec:** the maintainer decisions of 2026-09-28, recorded in [§ Decisions](#decisions). There is no separate spec document.
 
 **Status:** Implemented, 2026-09-28. Phase 1 and Phase 2 merged in PR #264 at
-`main@e7cfe9ca`; Phase 3 is ready for review in PR #266.
+`main@e7cfe9ca`; Phase 3 merged in PR #266 at `main@7936ca48`.
 
 ## Decisions
 

docs/archive/README.md

@@ -158,6 +158,8 @@ reconfirmed by this metadata audit. The per-file inventory and limitations are r
 | [2026-09-28-superpowers-plan-branch-9-follow-ups.md](2026-09-28-superpowers-plan-branch-9-follow-ups.md) | `docs/superpowers/plans/2026-09-28-branch-9-follow-ups.md` | Finished Superpowers plan | Implemented work record preserved after its implementing PR merged. |
 | [2026-09-28-superpowers-plan-upstream-watch-ledger-branch.md](2026-09-28-superpowers-plan-upstream-watch-ledger-branch.md) | `docs/superpowers/plans/2026-09-28-upstream-watch-ledger-branch.md` | Finished Superpowers plan | Implemented work record preserved after its implementing PR merged. |
 | [2026-09-28-superpowers-spec-upstream-watch-ledger-branch-design.md](2026-09-28-superpowers-spec-upstream-watch-ledger-branch-design.md) | `docs/superpowers/specs/2026-09-28-upstream-watch-ledger-branch-design.md` | Finished Superpowers specification | Implemented work record preserved after its implementing PR merged. |
+| [2026-09-28-plan-docs-taxonomy-and-archive.md](2026-09-28-plan-docs-taxonomy-and-archive.md) | `docs/plans/2026-09-28-docs-taxonomy-and-archive.md` | Finished documentation taxonomy and archive plan | Implemented in [PR #264](https://github.com/pacphi/agentic-kit/pull/264) and [PR #266](https://github.com/pacphi/agentic-kit/pull/266). Current layout rules live in the [docs index](../README.md) and [layout guard](../../scripts/docs-layout.mjs); this plan records the build steps. |
+| [2026-09-28-plan-sonnet-5-5-routing-refresh.md](2026-09-28-plan-sonnet-5-5-routing-refresh.md) | `docs/plans/2026-09-28-sonnet-5-5-routing-refresh.md` | Routing and pricing research with the implemented model-catalog decision | Implemented in [PR #268](https://github.com/pacphi/agentic-kit/pull/268). The operative tier decision is in [ADR-0006](../adr/0006-primary-host-and-ambidextrous-mirroring.md); prices and benchmarks here are dated evidence. |
 
 ## Naming convention
 

docs/plans/2026-09-28-remediation-program-v2.md

@@ -6,7 +6,7 @@
 
 **Written against:** `main@e957737b`. v1 status: #258, #259, #260, #261 and #263 merged on 2026-09-28. npm still ships `4.0.0-alpha.59`, so #259–#263 are unreleased, and #263 changes the CLI in breaking ways. The only worktrees are the main checkout and this one, and no stash exists.
 
-**Sources:** the scope reconciliation, keyed by its row ids in [Appendix A](#appendix-a-the-reconciliations-189-rows); the SDD ledger, cited as `L:NNN`; [the 6b plan](../archive/2026-09-28-superpowers-plan-branch-6b-one-refresh-flag.md), whose section "Deferred to Branch 6c" holds the dashboard task text; [the Branch 9 plan](../archive/2026-09-28-superpowers-plan-branch-9-follow-ups.md), which holds Tasks 5–14, the deferred items and N-1 to N-5; the N-5 list; the final reviews of 6b and Branch 9; and [the docs taxonomy plan](2026-09-28-docs-taxonomy-and-archive.md). The reconciliation, the ledger, the N-5 list and the reviews are git-ignored files in the main checkout under `.superpowers/sdd/2026-09-26-remediation-program/` (`reports/program-scope-reconciliation.md`, `progress.md`, `reports/n5-253-deferred-minors.md`, `reports/b6b-final-review.md`, `reports/b6b-final-rereview.md`, `reports/b9-final-review.md`).
+**Sources:** the scope reconciliation, keyed by its row ids in [Appendix A](#appendix-a-the-reconciliations-189-rows); the SDD ledger, cited as `L:NNN`; [the 6b plan](../archive/2026-09-28-superpowers-plan-branch-6b-one-refresh-flag.md), whose section "Deferred to Branch 6c" holds the dashboard task text; [the Branch 9 plan](../archive/2026-09-28-superpowers-plan-branch-9-follow-ups.md), which holds Tasks 5–14, the deferred items and N-1 to N-5; the N-5 list; the final reviews of 6b and Branch 9; and [the docs taxonomy plan](../archive/2026-09-28-plan-docs-taxonomy-and-archive.md). The reconciliation, the ledger, the N-5 list and the reviews are git-ignored files in the main checkout under `.superpowers/sdd/2026-09-26-remediation-program/` (`reports/program-scope-reconciliation.md`, `progress.md`, `reports/n5-253-deferred-minors.md`, `reports/b6b-final-review.md`, `reports/b6b-final-rereview.md`, `reports/b9-final-review.md`).
 
 **How v2 saves attended time:**
 
@@ -217,7 +217,7 @@ Seven branches. V2 has two PRs, so there are eight PRs in total. Effort is given
 
 ### V2 `docs/taxonomy-reorg` and `docs/archive-link-repair`: the docs taxonomy
 
-**Scope:** [the taxonomy plan](2026-09-28-docs-taxonomy-and-archive.md) as written, with its Proposed status lifted by D-3.
+**Scope:** [the taxonomy plan](../archive/2026-09-28-plan-docs-taxonomy-and-archive.md) as written, with its Proposed status lifted by D-3.
 
 - PR A covers Tasks 1–9. Tasks 1–2 are tools only, so they can overlap V1. Task 3 regenerates the move map, and it starts only after the plan's "When to run" check prints nothing.
 - PR B covers Tasks 10–12, cut from `main` after PR A merges and run alongside Wave 2.