ad-level-up

# /ad-level-up Evolve the rule-set without bloating it. Where `ad-audit` audits work against the rules, this skill curates the rules — adding only the generalising survivors, leanly, with evidence, and **never without your explicit approval**. ## Prime directive — HARD human gate A full or drifting context, or a model having an off moment, must never edit the rule-set unsupervised — that is exactly when a bad write slips in. So: **NEVER write without explicit human approval.** Always present the proposal plus a plain-language rationale first; apply only on the user's OK, one item at a time. No batch writes, no "while I'm here" edits. This gate is enforced by this contract, not by tool permissions — hold to it even though `Edit` is available. ## Rules target Two curated layers exist (ADR-0035 + ADR-0043); every accepted candidate targets exactly one: - **Machine store** — a you-everywhere convention: `$AGENTIC_RULES_DIR` if set, else `~/.agentic/rules/`. - **Project rules** — a this-project convention: `.agentic/rules/` at the repo root. On genuine conflict, a project rule shadows a machine-store rule (the audit reports the shadowing), so curate a project rule when the project deliberately deviates from the practitioner's global set. Recommend the layer from the rule's own content (does it generalize beyond this repo?); the user confirms. Read the target layer before proposing (the edit needs a prior read; voice-matching needs the current text). If the target layer does not exist yet, say so — offer to create it on approval, rather than inventing a path. **First project-rule creation:** ask whether `.agentic/rules/` is **committed** (versions with the repo; the team inherits it) or **machine-local**; in machine-local mode, on approval, write the `.agentic/rules/` entry into `.git/info/exclude` yourself — never `.gitignore`, which is committed and team-visible. When you find an `.agentic/rules/` that is neither committed nor excluded (e.g. a fresh clone), re-offer the choice. A convention that belongs in a repo binding doc (`AGENTS.md`, `GUIDELINES.md`) or is bigger than a rule line routes to `/ad-adr` or `/ad-guidelines` instead — this skill owns the terse rule-set. ## Step 1 — State candidate + evidence One sentence plus the citation (a finding, PR, transcript, or `file:line` — or the `ad-audit` handoff that surfaced it). If it cannot be cited, stop — it is not grounded, and a lone uncited slip is a memory note, not a rule. A **PR-history harvest** is a first-class candidate source (ADR-0047): periodically — monthly-ish, or after a dense review round — scan the recent merged PRs for defects reviewers missed and review comments that repeat; each recurring gap arrives with its citations built in. Harvest is a source, not a bypass: every harvested candidate still clears Steps 2–7. ## Step 2 — Trace to root cause Where was this *seeded*? Attach the candidate to the upstream cause (an investigation / grounding / verification gap), not the surface symptom. ## Step 3 — Four anti-overfitting gates All four must pass; reject the rest **out loud**: 1. **Recurrence or deliberate decision** — it recurs / matches a known prior pattern, OR it is a deliberate forward-looking standardisation. A lone accidental slip with neither is a memory note, not a rule. 2. **Generalisation** — it helps a whole class of future work, not just re-prevents this exact scenario. 3. **Load-bearing root cause** — an upstream cause that cascaded, not a leaf symptom. 4. **Proportionate cost** — it earns its keep against every reader carrying it forever (each extra rule lowers adherence to all the others). A rule preventing a rare, cheaply-caught-downstream slip is a net negative — reject it. ## Step 4 — Effectiveness pass - **Classify:** improvement · correction · increment · **merge into an existing rule** · **extend an existing rule** · **reject**. Prefer sharpening / merging / extending over adding a new line. - **Redundancy:** does an existing rule (or a repo binding doc) already watch this? If so, merge — never add an overlapping rule. - **Real behaviour:** does it catch a defect actually observed (cite it), or a hypothetical? A rule guarding a defect nobody has hit is dead weight — reject or shelve as a note. - **Dead-rule sweep:** if an existing rule no longer maps to real behaviour or is subsumed by another, flag it for retirement in the same proposal. ## Step 5 — Deterministic placement Place by grounding-target / failure-mode, never by nearest heading. Assign the rule to the group whose grounding-target it matches. Keep the group set minimal — a NEW group only when a defect class is demonstrably uncovered by every existing group; split a group only when its rule count grows too large (then split along its grounding-target). Give the rule the next stable id in its group. ## Step 6 — Draft the minimal edit Read the target rule file(s) first. Write the terse imperative rule under its group, and — when there is a why worth keeping — its rationale alongside. One rule, lean. Do not write to disk yet. ## Step 7 — Adversarial multi-lens review of the candidate Fan out fresh-context reviewers (one `Task` call per lens, routing to the bundled `rule-candidate-reviewer`), each trying to REFUTE the candidate against the ACTUAL current rule files — never assume. Run all three lenses. - **(a) already-covered** — is this rule or its effect already enforced by an existing rule / binding doc? Cite the covering rule. If covered, the disposition is **reject** (fully covered) or **merge** (sharpen the existing rule). - **(b) coherence + necessity** — does it hold up? Is it the minimal change? Does it clear the four gates and the placement principles? - **(c) placement** — is the group / id right, or does it belong elsewhere? The review filters and reclassifies (survive-as-add / merge / reject); it never writes and never bypasses the human gate. ## Step 8 — Report + gate Present: - the proposed delta (exact old → new per file, at the resolved rule-set path); - the gate table (candidate · recurrence · generalisation · root-cause · cost · verdict); - the effectiveness line (classification · redundancy · real-behaviour · dead-rule sweep result); - the adversarial-review verdicts per lens (citing the covering rule on any reject/merge); - a plain-language rationale (one short paragraph); - a "considered but rejected as overfitting" list, each with the gate it failed. **Apply only on the user's explicit approval, one item at a time.** On approval, make the minimal change — `Edit` an existing rule file, or `Write` to create the rule-set file at the resolved location when it does not exist yet; then stop and await the next item. ## Output contract - A proposal (delta + gate table + effectiveness line + adversarial verdicts + rationale + rejected-as-overfitting list) — **presented, not applied**. - One `Task` invocation of `rule-candidate-reviewer` per lens. - On explicit approval: the minimal edit to the rule-set at the ADR-0035 location, one item at a time. Nothing written without approval. ## Next - Re-run `/ad-audit` after a rule lands to confirm it catches what it was written for. - For a decision bigger than a rule line: `/ad-adr` (architectural) or `/ad-guidelines` (engineering standards). - `ad-audit`'s Step 8 handoff is this skill's Step 1 candidate.