docs: the build progress design is landed with #742; the .agents/docs index lists it

Author: speak-agent

.agents/docs/2026-09-29-build-progress-display-design.md

@@ -1,12 +1,11 @@
 ---
 subject: design
-status: accepted
+status: landed
 ---
 
 # Build progress: each step's line states its outcome, and one status line states the build
 
-- Status: accepted (revision 2), implemented in #742 and released with
-  2026.9.29.5
+- Status: landed (revision 2). Implemented in #742, released as 2026.9.29.5
 - Date: 2026-09-29
 - Origin: the cross-verification of #742 on the validation project (run
   36562019799). `mcpp build --workspace` printed its last `Compiling` line at

.agents/docs/README.md

@@ -18,7 +18,7 @@ superseded_by: 2026-09-07-....md  # when status is superseded
 ---
 ```
 
-317 records.
+318 records.
 
 ## By subject
 
@@ -31,6 +31,7 @@ Records that declare one. Everything else is listed by date below.
 ### design
 
 - [The workspace as the unit of build: one graph per configuration, one scheduler, product directories, and a reusable graph module](2026-09-29-workspace-build-graph-design.md) — landed
+- [Build progress: each step's line states its outcome, and one status line states the build](2026-09-29-build-progress-display-design.md) — landed
 - [An ecosystem design for mcpp and xlings: one authority per fact, and the work that follows from it](2026-09-28-ecosystem-design-and-optimisation-plan.md) — landed
 - [Build cost, foreign toolsets, the build-plugin architecture and the library surface: engine, plugin and index design (#734)](2026-09-28-build-cost-foreign-toolsets-and-library-surface-design.md) — landed
 - [The compile database, `emit build-database`, and #701/#702: triage against the specifications, and one design](2026-09-26-compile-database-and-issue-699-design.md) — landed
@@ -109,6 +110,7 @@ Records that declare one. Everything else is listed by date below.
 ### 2026-09
 
 - [The workspace as the unit of build: one graph per configuration, one scheduler, product directories, and a reusable graph module](2026-09-29-workspace-build-graph-design.md) — landed
+- [Build progress: each step's line states its outcome, and one status line states the build](2026-09-29-build-progress-display-design.md) — landed
 - [Two days of mcpp and xlings: a review of what merged, what is known, and what is open](2026-09-28-ecosystem-review-of-two-days-of-mcpp-and-xlings.md) — active
 - [An ecosystem design for mcpp and xlings: one authority per fact, and the work that follows from it](2026-09-28-ecosystem-design-and-optimisation-plan.md) — landed
 - [Build cost, foreign toolsets, the build-plugin architecture and the library surface: engine, plugin and index design (#734)](2026-09-28-build-cost-foreign-toolsets-and-library-surface-design.md) — landed