.. include:: /_templates/include-file/page-prefix.rst

.. _hell-ll-infra-b21-launch-3-critical-cross-links:


================================================================================
b21 launch-3 --- Critical cross-links inline (3 launch-blockers)
================================================================================

| **Mode:** EDEN
| **Effort:** Max
| **Run order:** 3 of 7 in the b21 launch-sprint sub-prompt set.
| **Status of upstream:** F-3 from :doc:`b20 review llog
  </matheology/hell/ll/infra/b/20/b20-launch-unit-review_2026m05d22>`
  §10. Three missing cross-links flagged as launch-critical in
  b20 §9.
| **Drafter:** Claude Opus 4.7 Max (``dv_ClaOp47Max``) at LLoL's
  request on 2026m05d22.


.. contents:: Sections
   :depth: 2
   :local:


----

1. Context
============

The b20 cross-link manifest (§9) catalogued 20 nodes between the
launch-unit artefacts; 6 are missing and 3 are critical for the
launch:

- **dung-beetle post → b19 SGIR paper.** Concrete proof-of-work
  that the audit-the-math ask is non-trivial.
- **b18a body → AuditTheMath landing + Matheo overview.** The
  reader of b18a needs the action ask + paper-list anchor.
- **Buy-In → AuditTheMath (reverse).** The reader who lands on
  Buy-In first (e.g. via dung-beetle's Buy-In CTA) needs the
  verification path.

This prompt is **inline edits**, not architectural decisions ---
but EDEN/Max because each link's *placement* matters (good UX vs
ugly graft). Run AFTER launch-1 (Buy-In streamlining) which may
already add the Buy-In → AuditTheMath link.

----

2. Tasks
==========

2.1 dung-beetle → b19 SGIR
----------------------------

File: ``source/blog/posts/2026-05-21-prophetic-dung-beetle.rst``

Add **one** cross-link to the b19 SGIR paper. Suggested
placement: in the AuditTheMath CTA section (lines 401--425), as
part of ask #1 (*Read and respond*) --- naming b19 as the example
paper to start with for an interested mathematician.

Test:

- Does the new link land smoothly in the existing prose? (If
  the only way to add it is awkwardly, flag and propose a
  different placement; do not force.)
- Does the metaphor sustain across the link? (b19 is the
  pandemic paper; the cross-link should not break the
  dung-beetle frame.)

Alternative placement: line 425 (after the final dung-ball line),
as the b20 review's E-DB-4 suggested. Decide based on prose flow.

2.2 b18a body → AuditTheMath + Matheo overview
------------------------------------------------

File: ``source/matheology/hell/mm/b/18/mmv2/b18-call-to-action_mmv2r1_2026m04d16.rst``

Add cross-links per b20 §5.4:

- **L-B18A-3** equivalent: §1 Introduction first paragraph → link
  to Matheo-b11 (PET) + Matheo-b19 (SGIR) on first mention.
- **L-B18A-4** equivalent: §1 closing paragraph → link to
  AuditTheMath landing.
- **L-B18A-10** equivalent: Conclusion → link to dung-beetle blog
  post (narrative companion) + AuditTheMath landing (action
  companion).

For each insertion, use the ``:doc:`` form for internal RST refs.

Verify after each insertion that the link text reads naturally
in context. If it feels grafted, propose moving it rather than
forcing it.

2.3 Buy-In → AuditTheMath (reverse link)
------------------------------------------

File: ``source/buy-in/index.rst``

Add a single ``:doc:`` link back to AuditTheMath. Suggested
placement: in the "What 'Buy In' means" section (currently lines
30--40 of the placeholder), as the reader's "verify before you
contribute" path.

**Coordination note:** if launch-1 (Buy-In streamlining) has
already been executed, this link may already exist --- check
before adding. If launch-1 has NOT been executed, this is the
*minimum-viable* Buy-In → AuditTheMath link; the streamlining
in launch-1 will replace / extend this when run.

----

3. Test (across all 3 edits)
=============================

After all three files are edited:

- Run ``make dev`` from the repo root.
- 0 new warnings introduced.
- HTML build of each of the 3 files renders the new links.
- Click-through each new link in the local HTML build to test
  the target page exists and is reachable.


----

4. Out of scope
==================

- Any other cross-links (the b20 §5.4 P-1 grid is launch-4's
  job; P-2 / P-3 grids are launch-7's).
- Reordering content to make cross-links fit better (TELES-scope
  insertion only).
- Adding cross-links to other files (e.g. AuditTheMath landing,
  Matheo overview --- these are out of scope for *critical*
  links; the b20 manifest shows their existing links are
  already PRESENT).


----

5. Deliverables
=================

Produce a **single new LLog file** at
``source/matheology/hell/ll/infra/b/NN/bNN-launch-3-execution_<date>.rst``
containing:

- For each of the 3 edits: file:line of insertion + before/after
  excerpt (3--5 lines of surrounding context).
- Build test result.
- Click-through test result.
- Any placements that proved awkward + the chosen resolution.
- Concluding summary: which critical links are now in place.

Also update the infra index.


----

6. Timing & BABL-resistance
==============================

**Target: 30--60 minutes.**

The BABL trap: *scope creep*. The b20 manifest lists 20 nodes;
this prompt covers only the 3 critical ones. If during execution
you notice other missing links that "obviously should be added,"
**flag them in the llog** for launch-4 / launch-7 --- do not
add them inline.


----

.. ----------------------------------------------------------------------
.. VVN: dv_ClaOp47Max_OOv1p0_b21-launch-3-critical-cross-links_2026m05d22 , dv_LLoL_OOv1
.. ----------------------------------------------------------------------