Files
home-network-k3s-impl/decisions
jakman85andClaude Opus 5 6253d546f8
gate / gate (pull_request) Successful in 1m50s
gate / conformance (pull_request) Has been skipped
docs(pm-agent): the registry cannot be pulled from yet — name both prerequisites where the operator reads them
pm-agent reconciled exactly as designed after #57: Flux applied main@sha1:95597bd to
platform-config, pm-agent and apps-wave-0 (all Ready), the ClusterPolicy
pm-agent-job-shape is live with Enforce + failurePolicy Fail and all six rules, SOPS
decryption works through the new overlay patch (checked by key names and value lengths,
never values), and pm-agent-worker really is bound to nothing.

Measuring it turned up two prerequisites for the NEXT operator step that nothing in this
repository declares, and that #57's handoff could not have known — it listed the image
pull as unverified, and that is exactly where it bit:

 - the nodes cannot verify the registry's TLS certificate (containerd: 'x509: certificate
   is not valid for any names'), while the same name serves a healthy Let's Encrypt
   wildcard from the LAN. A correct digest fails identically;
 - an unauthenticated client gets nothing from this Gitea's registry (its anonymous token
   carries no access scope) and no imagePullSecret exists anywhere in the tree.

Not specific to pm-agent: conformance-runner shares the registry path and has never been
pulled either. The dispatcher is the first workload in the cluster ever to reference it.

Documentation only — no manifest, no policy, no code. Both fixes need an operator action
and one of them is a posture decision, so the docs present both rather than pick.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:22:52 -05:00
..

decisions/ — the handoff log, one file per entry

This directory is the decision log. ../DECISIONS-LOG.md is the frozen archive of everything written before 2026-09-29 and is never edited again (see "The archive is frozen" below).

Why this exists

DECISIONS-LOG.md was append-only in a single file, and every agent appended to its tail. Two branches that both append hit the same last hunk, so git cannot auto-merge them: the second one to be reviewed conflicts, and so does the third, and the fourth. Measured on 2026-09-29: four of the five open PRs were unmergeable, and DECISIONS-LOG.md was the only conflicting file in all four:

#22 fix/crafty-oauth2-proxy-signin      CONFLICT (content): DECISIONS-LOG.md
#20 feat/conformance-job-template       CONFLICT (content): DECISIONS-LOG.md
#19 feat/conformance-trigger-kubeconfig CONFLICT (content): DECISIONS-LOG.md
#18 feat/conformance-runner-image       CONFLICT (content): DECISIONS-LOG.md
#17 feat/ci-is-the-approver             clean  (it touched no log entry)

Nothing was wrong with any of those changes. The log's storage format serialised work that was otherwise parallel, and it got worse with every concurrent branch: N branches produce N-1 rebases, each of which invalidates any gate run that preceded it.

The fix is the obvious one for concurrent appenders: stop sharing a file. Each handoff is its own file. Two agents writing handoffs touch disjoint paths, so there is nothing for git to merge and nothing to conflict. This scales to any number of parallel branches with zero coordination — which is the point, since the agents are deliberately isolated from each other in separate worktrees (required by CLAUDE.md §0) and cannot coordinate.

There is deliberately no index file and no counter. An index would be a shared mutable file — exactly the thing that just failed — and a sequence number would have two agents racing for 0043. The directory listing is the index.

Writing an entry

One file per handoff, named:

decisions/YYYY-MM-DD-<slug>.md

<slug> is lowercase [a-z0-9-]. Use your branch name's last segment — it is already unique per unit of work, which is precisely the property the filename needs. A branch fix/crafty-oauth2-proxy-signin handed off on 2026-09-29 writes:

decisions/2026-09-29-crafty-oauth2-proxy-signin.md

The file is YAML frontmatter followed by three required sections:

---
date: 2026-09-29
branch: fix/crafty-oauth2-proxy-signin
title: The Keycloak gate works — Crafty's own login was the wall
---

## What changed

Prose. What you actually did, and why.

## What I verified

The measurements, with their numbers. Quote the field you read, not the prose you
believed. Name the gate result and its exit code.

## What I did NOT verify

Everything else. An honest "UNVERIFIED" is worth more than an optimistic "green" —
this repo has been burned by the difference more than once.

All three headings are required and enforced (ci/decisions-log.sh). They are CLAUDE.md §7's contract; making them a checked structure is what stops an entry degrading into "done ✅".

Reading the log

The whole log, oldest first:

ls decisions/[0-9]*.md | sort

The current PM handoff — the newest entry. Ties within a day are broken by what landed on main last, which is the honest answer, so ask git rather than the filename:

git log --diff-filter=A --format='%H' --name-only -- 'decisions/[0-9]*.md' \
  | grep '^decisions/' | head -1

For a quick skim of who said what:

grep -H '^title:' decisions/[0-9]*.md | sort

The archive is frozen

DECISIONS-LOG.md is read-only history. Its SHA-256 is pinned in decisions/ARCHIVE.sha256 and ci/decisions-log.sh fails the merge gate if the file changes. That is not ceremony: without it, the next agent to read runbooks/ or an old CLAUDE.md habit appends to the tail again and re-creates the conflict for everybody else, silently, one PR at a time.

If the archive genuinely must change (a leaked credential to redact, say), that is a deliberate, reviewed act: change it, run sha256sum DECISIONS-LOG.md > decisions/ARCHIVE.sha256, and say in your handoff entry why. Re-pinning is visible in the diff. Appending is not.