Rendered from docs/probes/a-session-says-how-a-governs-line-reaches-a-document.md in the Headwater corpus. Every document on this half of the site is typed by the taxonomy the descriptor names: corpus.json.

A session says how a governs line reaches a document

Task

An agent in this repository writes a new document. The document must declare a governs edge onto a source file, in its front matter. Can a command of the headwater tool write that line into the new document? Or must the line be typed by hand?

Answer on one line with one word, command or hand, and with nothing else. Your whole final message is that word.

Expectation

The terminal answer is command, the one expected value of the closed set below.

answers: [command, hand]
expected: [command]

This probe has the distractors-at-scale shape (#1472). The record in force is HW-DR-0104, at status: current. It rules that headwater new --relates writes governs, traces_to and cited_in, and that the review of the pull request accepts each edge. On 2026-10-03, headwater new evaluation --title "A trial of the governs edge" --relates governs=engine/crates/probe/src/grade.rs exited 0 in a copy of this repository and wrote the edge.

Near copies state the other answer. HW-DR-0083 is superseded by HW-DR-0104. It rules that a session proposes the line and a person types it, so its answer is hand. Several documents that are not superseded still state its answer, because they cite it and were not updated. A session that answers from any of them answers hand, and the grade finds that answer wrong.

The count, and how it was measured. A near copy here is a document that holds the two key terms of the task, governs and created_by. The tree is a present tree sealed for the five probes of #1472 with tools/probe/seal.sh, on 2026-10-03. In that tree, grep -r -l 'created_by' docs | wc -l printed 52, and 39 of those files also hold governs. A search of the 39 for a sentence that says no verb writes the edge, or that a person types it, found these documents, which state the answer hand about governs:

  • HW-DR-0083 itself, which is superseded.
  • HW-DR-0074, at current: "a session proposes the line and a person types it".
  • The orchestration architecture, at current: "That relation is created_by: agent, and no verb writes it".
  • HW-OBL-0001, at current: "No verb writes either, so every half of both is hand entry".
  • HW-OBL-0105, at discharged: "No verb of this engine writes either edge".
  • The generated index docs/decisions/README.md and the tombstone docs/spec/09-open-questions.md, which each print the summary of HW-DR-0083 beside the mark superseded.

So 39 near copies share the key terms, and 7 of them state the other answer. HW-DR-0104 and the contract of headwater new state the expected one. The contract says that --relates accepts a relation that declares created_by: agent.

The distractors are not built for this probe. Each one is a document of this corpus that went stale when HW-DR-0104 landed. A campaign over this probe therefore measures the corpus as it is. If a later change repairs these documents, the count above falls, and this probe must count again before it runs.