path: root/working/context-engineering-rightsizing/rollout.org

#+TITLE: Context-Engineering Rightsizing — Rollout Schedule
#+AUTHOR: Craig Jennings
#+DATE: 2026-07-27

* Why this is phased rather than done in one pass

The change is a bet that on-demand loading fires as reliably as always-resident
text. That bet is cheap to test and expensive to assume. Every phase below
either produces evidence or spends evidence already earned. Nothing
load-bearing moves before the mechanism has been watched working.

The second reason is blast radius. Everything here rides the template sync into
every project on its next startup, so a bad phase is not contained to this
repo. The early phases are chosen so a failure is visible and harmless.

* A finding that changes the plan

The harness system prompt already carries most of what the Opus 5 guide
recommends adding. Its task-scope block, its correction-narration block, and
its subagent-delegation cap are present nearly verbatim. The
context-engineering post's replacement comment guidance ("write code that reads
like the surrounding code") is present as the post's own new wording.

Two consequences:

1. *Do not "apply the posts" by adding their suggested prompt blocks.* They are
   already live. Adding them to =claude-rules/= would create exactly the
   duplicate-and-conflict problem the first post opens with, while making the
   token count worse.
2. *There is a third deduplication axis.* The proposals named =protocols.org=
   against =claude-rules/=. There is also =claude-rules/= against the harness
   system prompt, and that one is invisible from inside the repo. Any rule that
   restates harness guidance is pure cost.

This is why the posts' value here is subtractive, not additive.

* Phase 0 — Free wins (this session, no dependencies)

*Scope.* Three items that interact with nothing.

1. Fix the review-finding pre-filter (P2). =review-code/SKILL.md= lines 251 and
   434 tell the reviewer to drop low-confidence findings before reporting.
   Replace with report-everything-labelled, filter in a named second pass.
2. Run =/doctor=. The context-engineering post says Anthropic shipped these
   practices as a command that rightsizes skills and =CLAUDE.md=. Its output is
   free evidence, and it may disagree with this plan, which is worth knowing
   before executing it.
3. Record the harness-overlap finding above where it will be seen at the moment
   it matters — a note in the rules index, not buried in this document.

*Reasoning.* None of these depend on the pilot's outcome, and item 2 could
change the plan.

*Decision needed:* none.

*Success criteria.* Review skill reports with confidence labels and a separate
filter step. =/doctor= output read and reconciled against this schedule.

*Rollback.* Single revert; nothing downstream depends on it.

* Phase 1 — The pilot migration (next working session)

*Scope.* Six rule files move from always-loaded to on-demand skills. Roughly
3,000 words, about 12% of the rules surface.

| File                  | Words | How a silent miss would be caught         |
|-----------------------+-------+-------------------------------------------|
| =org-tables.md=         |   464 | =lint-org= checker =org-table-standard=       |
|-----------------------+-------+-------------------------------------------|
| =docs-lifecycle.md=     |   582 | spec status-board grep; =lint-org= checkers |
|-----------------------+-------+-------------------------------------------|
| =ui-prototyping.md=     |   696 | =spec-review= verifies the process ran      |
|-----------------------+-------+-------------------------------------------|
| =keybinding-display.md= |   505 | you see the wrong format immediately      |
|-----------------------+-------+-------------------------------------------|
| =desktop-capture.md=    |   458 | a window lands on your active workspace   |
|-----------------------+-------+-------------------------------------------|
| =patterns.md=           |   291 | already only a pointer; nothing to miss   |
|-----------------------+-------+-------------------------------------------|

*Reasoning — the selection rule matters more than the list.* These were not
picked for being small or cheap. They were picked because *a failure to fire is
detectable*. Four have a mechanical checker or workflow gate that catches the
miss; two produce an error you see within seconds. That is what makes the pilot
an experiment rather than a hope.

=daily-drivers.md= and =emacs.md= were considered and held back. Both are
low-risk in content, but a miss on either surfaces slowly — as drift on the
other machine, or as a stale daemon — so neither would tell us anything within
the trial window.

*Decisions needed.*

- *D1 — Confirm the pilot set.* Six files as listed, or trim further. My
  recommendation is the six: fewer than that and the trial may not exercise the
  mechanism enough to learn from.
- *D2 — Does the always-loaded core carry a skill index?* A one-line-per-skill
  list naming what exists and when it applies. It costs perhaps 200 words and
  should materially improve trigger reliability, since the model can see that a
  rule exists even when its content isn't loaded. My recommendation is yes, and
  the pilot is the right place to test whether the index is what does the work.

*Success criteria.* Always-loaded surface drops to about 29,000 words. All six
skills exist with trigger descriptions. Suite green, sync clean, every project
picks up the change on next startup without drift.

*Rollback.* One revert restores the files to =claude-rules/=. The skills can
stay in place harmlessly.

* Phase 2 — Live trial (one week of real sessions, no work required)

*Scope.* Use the system normally. Do not compensate for the pilot by mentioning
the moved rules — that would invalidate the result.

*Reasoning.* This is the phase that buys everything after it. The question is
narrow and answerable: when work touches one of the six domains, does the skill
fire without prompting?

*What gets recorded.* Each session that touches a pilot domain notes one line
in the session log: which domain, whether the skill fired, and whether the
detector caught anything. At the end of the week that's a short table rather
than an impression.

*Decision needed:* none during the trial.

*Success criteria.* Defined in advance so the verdict isn't argued after the
fact:

- *Pass* — no detector fires on a moved rule, or any miss is caught by its
  detector and corrected in the same session.
- *Fail* — a miss reaches a commit, or the same rule misses twice.
- *Ambiguous* — no session touched the domain. That is not a pass; extend the
  window or move a rule that gets exercised more.

*Rollback.* Revert on a Fail, and the plan stops at Phase 0.

* Phase 3 — Go/no-go and the gate separation (one session)

*Scope.* Read the trial table, decide whether the mechanism is trusted, and
separate the approval gates.

*Reasoning.* The gate separation is the highest-leverage input in the whole
plan, and it sits here rather than earlier for one reason: if Phase 2 fails,
the question is moot, because nothing more moves either way.

*Decision needed.*

- *D3 — Which gates are preference and which are guardrail?* Every approval gate
  in the system reads identically in the files. Some you would keep even if the
  agent were perfectly reliable, because you want to see what goes out under
  your name. Others exist because the worst case used to be worse. The list to
  walk: the publish approval gate, the inbox shared-asset approval, the
  spec-review flip, the wrap certification, and the no-approvals mode's carve
  outs.

  Preference gates are untouchable and stay always-loaded regardless of length.
  Guardrail gates are candidates for relaxation on the posts' argument. I can
  prepare the list with my read of each, but the answers are yours.

*Success criteria.* Every gate labelled. The label determines what Phase 4 may
move.

* Phase 4 — The load-bearing files (two or three sessions)

*Scope.* =commits.md= (5,561), =todo-format.md= (4,494), =testing.md= (2,824),
=working-files.md= (950), =subagents.md= (1,041). About 15,000 words, the bulk
of the remaining surface.

The split within each file is by blast radius, not by length. =commits.md= is
the worked example: the AI-attribution ban and the content-scope rule stay
always-loaded and get shorter, while the publish flow, the message format, and
the voice mechanics become the publish skill that loads when a commit is in
play.

*Reasoning.* This is where the token math actually pays. It runs last because
it is where a silent miss is expensive: an unattributed commit, a leaked path,
an ungraded task.

*Decision needed.*

- *D4 — Resolve the =verification.md= conflict (C1).* The Opus 5 guide says
  explicit verification instructions cause over-verification and should be
  removed. Your standing direction is never guess, always check. My read is
  that these are compatible because they address different things: the honesty
  core (don't claim a green suite you didn't run) stays, and the process
  injection (green baseline before starting, suite as its own step) moves into
  the publish skill. But it is your rule and your call, and this decision blocks
  =commits.md= moving because the two files reference each other.

*Success criteria.* Always-loaded surface under about 8,000 words. Two full
weeks of sessions with no attribution, scope, or grading miss.

*Rollback.* Per-file, since each moves independently.

* Phase 5 — Deduplication (one session)

*Scope.* Three axes, in increasing order of payoff:

1. =protocols.org= against =claude-rules/= — the cross-project boundary,
   working-files, AI-attribution, and inbox cadence are each stated twice.
2. =claude-rules/= against the harness system prompt — the finding at the top
   of this document. Invisible from inside the repo and therefore never audited.
3. Within =claude-rules/= — rules that restate each other.

*Decision needed.*

- *D5 — Which surface owns each duplicated rule.* Generally the more specific
  one should own the content and the more general should carry a pointer, but
  there are cases where the reverse is right.

*Success criteria.* Each rule stated once. A stated rule for where new rules go,
so the duplication doesn't regrow.

* Phase 6 — Terseness and positive framing (rides along with Phases 4 and 5)

*Scope.* Rewrite prohibitions that aren't hard invariants as positive
descriptions. Cut the files that don't practice what they demand: =commits.md=
arguing terseness at 5,561 words, =testing.md= arguing an eight-row table
against rationalizations the model no longer needs talked out of, 591 bold
markers in files that ban bold in output.

*Reasoning.* Not a separate campaign. Every file opened in Phases 4 and 5 gets
this pass while it's open, because doing it separately means editing everything
twice.

*Decision needed:* none. This is style, and the voice skill already owns the
standard.

* Phase 7 — Discovery practices (after the surface is down)

*Scope.* The field guide's missing practices: a blind-spot pass, an interview
pattern, an implementation-notes convention for long builds, and possibly the
quiz.

*Reasoning.* Deliberately last, for two reasons. It adds surface, which fights
every phase before it, so it should land only once there is room. And the
seven-to-one execution-to-discovery ratio is the finding most likely to change
how the system actually feels to use, which makes it worth doing carefully
rather than early.

*Decision needed.*

- *D6 — Which practices you actually want.* I have low confidence on the quiz
  fitting how you work, and medium-high on the rest.

* Phase 8 — Effort calibration (independent, any time after Phase 2)

*Scope.* Set effort levels for the unattended loops: sentry's hourly fires,
work-the-backlog, the no-approvals speedrun.

*Reasoning.* Independent of everything else and safe to run in parallel. The
guide says to sweep effort on your own evals rather than trusting carried-over
defaults; we have no evals, so this is a trial and a judgment.

*Decision needed.*

- *D7 — Accepted quality floor for unattended passes.* A sentry sweep that runs
  cheaper but misses one finding per night may be a good trade or a bad one.
  That's a preference, not a measurement.

* Ongoing — The consistency sweep

Runs alongside, not as a phase. Each file opened in Phases 4 through 6 gets read
for contradictions and stale facts while it's open, and findings go to a running
list rather than being fixed opportunistically. The expensive item — instructions
that contradict each other across files — is what the first post opens with and
what this whole exercise is downstream of.

* Decisions, collected

| ID | Decision                                     | Needed by |
|----+----------------------------------------------+-----------|
| D1 | Confirm the six-file pilot set               | Phase 1   |
|----+----------------------------------------------+-----------|
| D2 | Skill index in the always-loaded core?       | Phase 1   |
|----+----------------------------------------------+-----------|
| D3 | Which gates are preference vs guardrail      | Phase 3   |
|----+----------------------------------------------+-----------|
| D4 | Resolve the verification.md conflict         | Phase 4   |
|----+----------------------------------------------+-----------|
| D5 | Which surface owns each duplicated rule      | Phase 5   |
|----+----------------------------------------------+-----------|
| D6 | Which discovery practices you want           | Phase 7   |
|----+----------------------------------------------+-----------|
| D7 | Quality floor for unattended passes          | Phase 8   |
|----+----------------------------------------------+-----------|

Only D1 and D2 are needed to start.

* The number this is aiming at

| Stage             | Always-loaded words |
|-------------------+---------------------|
| Today             |              32,123 |
|-------------------+---------------------|
| After Phase 1     |              29,100 |
|-------------------+---------------------|
| After Phase 4     |         under 8,000 |
|-------------------+---------------------|
| After Phase 5     |         under 6,000 |
|-------------------+---------------------|

Roughly an 80% reduction, which lands near what Anthropic reported. That
symmetry is a coincidence worth distrusting rather than aiming for: the target
is whatever survives the blast-radius test, and if that turns out to be 12,000
words then 12,000 words is the right answer.