The Principia Machina/Diagrams/C4 Landing and collaboration pipeline

Conceptual diagram 4 of 5. Part of the TPM hub.

• KIND: process
• LANGUAGE: Mermaid flow
• GENERATED FROM: declared by the human 2026-09-17; TPS 5.7-5.10, 6.2, 6.4
• STATUS: hand-authored at TPS 0.1.0; conceptual, kept by the human; never generated
• SOURCE SHA-256: eee33b01d101392be5f61e7a594b8d900f0f2c31a3bee79116dec6d802f74441
• KEY: key for process diagrams: what each shape and arrow means; definition of terms; contents of the specification

Rendered live from the source below, which is the text equivalent; if rendering is unavailable the source still stands.

Text equivalent

Stage 1 Petition: a PETITION row with CAPABILITY enters the queue in revision order; the head acquires within the ACQUISITION WINDOW (5.8.2, 5.8.5). Stage 2 Assign: the lead writes the ASSIGNMENT and the schedule log entry (5.8.3, 5.9.2). Stage 3 Work locally on the local instance under benchmark quarantine (5.4.3, 5.9.3, 6.4). Stage 4 Return and vet: the RETURN on the staging subpage is untrusted input; a detection becomes a decision item, a clean return is incorporated (5.8.4, 6.2). Stage 5 Land: the push carries grant, block ID and conformance declaration; TPX checks them and writes the badge last; release is valid only after the push (5.9.5, 5.9.8, 5.10.1). A refused push enters the post-refusal branch (5.9.7).