Agent-Skills.md

Agent Skills: tokenmaxxer

Serious engineering work with a reviewed plan and adversarial review gates; the required first argument word picks the mode. `build` — features, root-caused fixes, cross-cutting changes (trivial ones skip planning, never the diff gate). `refactor` — consolidate one accreted component, behavior-preserving. `sweep` — unattended overnight cleanup of a named area, shipped as draft PRs. `experiment` — metric-driven experimentation: approved hypothesis tree, autonomous batch of runs, next-batch report. `followup` — work recorded out-of-scope findings with the user's decisions; no required argument. Invoke explicitly, e.g. `/tokenmaxxer refactor <component>`.

UncategorizedID: arsenyinfo/rust-webapp-skill/tokenmaxxer

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arsenyinfo/rust-webapp-skill
arsenyinfo
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skills/tokenmaxxer/SKILL.md

Skill Metadata

Name
tokenmaxxer
Description
Serious engineering work with a reviewed plan and adversarial review gates; the required first argument word picks the mode. `build` — features, root-caused fixes, cross-cutting changes (trivial ones skip planning, never the diff gate). `refactor` — consolidate one accreted component, behavior-preserving. `sweep` — unattended overnight cleanup of a named area, shipped as draft PRs. `experiment` — metric-driven experimentation: approved hypothesis tree, autonomous batch of runs, next-batch report. `followup` — work recorded out-of-scope findings with the user's decisions; no required argument. Invoke explicitly, e.g. `/tokenmaxxer refactor <component>`.

Serious work mode. Task: $ARGUMENTS

The dev loop is the same across modes: understand the problem, capture intent in a contract, implement in reviewable slices, validate, and run adversarial review gates. What differs is who approves, what is allowed to change, and how work is chunked — that lives in the mode file.

Mode dispatch

The first word of $ARGUMENTS names the mode and is required — there is no default. It is always a mode selector, never part of the task, so a task that happens to start with the word "refactor" or "sweep" is never misread.

  • build <task> → references/build.md. A feature, a root-caused bug fix, or a broad cross-cutting change — a codebase-wide refactor-shaped change (a rename, a pattern migration) included.
  • refactor <component> → references/refactor.md. Consolidate a component that grew by accretion into one coherent design; behavior-preserving. One component — codebase-wide is build.
  • sweep <area> → references/sweep.md. Unattended overnight cleanup of a named area, shipping tiny verified fixes as draft PRs.
  • experiment <goal> → references/experiment.md. Metric-driven experimentation toward a goal: frame the metric and noise floor, build a hypothesis tree, gate and get it approved, run the batch autonomously, report with the next batch proposed.
  • followup → references/followup.md. Work through the follow-up ledger (below) with the user's decisions, review-first. No required argument; an optional one filters by area or names a specific ledger/report file.

If the first word is not exactly one of build, refactor, sweep, experiment, or followup, do not guess the mode — tell the user it is required and ask which one. Requiring the keyword is a safety property, not a formality: sweep opens PRs while the user is asleep, so it must never be reached by inference.

Do not blend attended and unattended policy. build, refactor, and followup are attended — they pause and ask the user; sweep is unattended — once launched it never asks (its one question, refusing to start without a named area, happens at launch) and records to the morning report instead. Never operate under both policies at once; that blend is the failure this skill guards against. experiment is a third policy of its own, not a blend: attended at the ends (framing, plan approval, report) and autonomous mid-batch strictly under the pre-approved plan and pre-registered decision rules — the approval is its consent boundary, as the named area is sweep's. refactor and followup are the compositions: each runs on top of build — read build.md (the dev loop) plus your mode's own file (the overrides) — safe because all three are attended. sweep and experiment stand alone; never load either beside another mode. The shared references (design-taste.md, deletion-evidence.md, triage.md) carry mechanisms and evidence standards only, never supervision policy; the mode file owns policy. Read your mode's file(s) now and follow them; they point you to the shared references as needed.

Review Cycle (all modes)

Define REVIEW(target, reviewer = codex:codex-rescue) as:

  1. run reviewer on target.
  2. triage each finding against this rubric, and explicitly note what you skip and why:
    • blocker — wrong behavior, data loss, security, race, silently swallowed error: fix always;
    • major — maintainability or missing behavior coverage reaching beyond one local spot: fix this round;
    • minor — local naming, style, or structure: fix only if already touching that code;
    • cosmetic — taste with no behavioral or maintenance consequence: skip and note.
  3. repeat from step 1 until a round yields no new actionable findings, or after 3 rounds total. If findings are still unresolved after 3 rounds, surface them and stop retrying: to the user in attended modes, to the morning report in sweep, and in experiment's batch by reverting that leaf uncommitted and carrying the findings into the phase 6 report.

If the default reviewer is not available, never degrade to self-review only: in attended modes (build, refactor, followup) abort and ask the user to fix; in sweep abort the run and write the failure to the morning report (Preflight); in experiment abort and ask during the attended phases, and mid-batch stop the batch and write the report from the state so far — a metric alone is not a gate. Substitute another review tool when the user prefers one (e.g. opencode in non-interactive mode or https://github.com/arsenyinfo/nitpicker); in sweep the substitute must be named at launch — never swapped mid-run — and inherits every duty sweep.md assigns to codex:codex-rescue: the preflight ping, both gates, and positive confirmation; in experiment the reviewer is fixed no later than plan approval and never swapped mid-batch.

Every REVIEW prompt must ask for concrete findings with file/line evidence across these lenses:

  • correctness, security, performance, data loss, races, partial failure, and logic consistency;
  • scope creep: unrelated changes, hidden behavior changes, or extra features not needed for the task;
  • overengineering: pass-through wrappers, factories for one implementation, producer-side interfaces, layer-cake delegation, future-proof hooks, and fallback paths that hide errors (see references/design-taste.md);
  • tests: missing behavior coverage, untested error paths, fake tests, mocks/monkeypatches of the system under test's own internals, and assertions that pin prose, wording, or generated output rather than behavior;
  • project fit: naming, error handling, logging, imports, comments, and structure must match the existing codebase and CLAUDE.md.

Plan/contract reviews additionally check that the contract defines the real problem, has reviewable atomic tasks, names validation commands, avoids compatibility work without a concrete need, and keeps tests tied to behavior rather than implementation wiring.

Intent contract (all modes)

Before implementing, write an intent contract: Goal, Inputs/outputs, Acceptance criteria, Scope boundaries, Open questions. The approver signs off on intent, not on hidden implementation assumptions. Modes scale it:

  • build saves it to a /tmp scratch file and gates it with REVIEW(plan); the trivial fast path may instead state it to the user in a sentence or two.
  • refactor extends it with a current-state map, target design, and deletion ledger (see references/refactor.md).
  • sweep writes one per cluster and gates it with Codex (see references/sweep.md).
  • experiment writes one per hypothesis-tree leaf — mechanism, single knob turned, expected effect vs the noise floor, pre-registered keep/revert rule, cost envelope (see references/experiment.md).
  • followup seeds it from the ledger entry's evidence and the user's recorded decision (see references/followup.md).

Escalation (all modes)

When implementation proves the approved scope, externally observable behavior, an API/data contract, or the acceptance criteria must change, do not smuggle the change into a local fix. The target of the escalation is the one thing that differs by supervision:

  • build, refactor, followup (attended): pause and ask the user.
  • sweep (unattended): the user is asleep — record it under the morning report's needs-your-call section with evidence and no code.
  • experiment: ask the user in the attended phases; mid-batch, an ambiguity takes a best guess disclosed in the report with a rerun offer, while a change to scope, contract, or the frozen protocol parks as a next-batch proposal — never guessed, never applied (see references/experiment.md).

Follow-up ledger (all modes)

A real, verified defect discovered outside the current run's approved scope or blast radius is recorded, never fixed inline (that would be a scope change — Escalation above) and never silently dropped. The ledger lives at a stable per-repo path: /tmp/tokenmaxxer-followups-<repo-basename>.md — ephemeral like everything in /tmp, an accepted trade; sweep reports and run summaries name the same findings as backup. The path is convention, not memory — after compaction or in a fresh session, followup mode re-derives it from the repo alone. Each entry carries:

  • one sweep-key: <normalized-path>:<line-range>:<mechanism-slug> line — this is the canonical definition of the dedup key format; one name across ledger, reports, and PR bodies so greps match everywhere;
  • file:line evidence and a one-line defect statement;
  • the concrete decision question the user must answer, with a recommended answer — decidable without re-reading the codebase;
  • origin (mode, date) and status: open, deferred, done (PR), or dropped (reason).

Append entries as findings surface, and name the ledger in your final summary whenever you added to it.

Hold your own work to the REVIEW lenses above; do not wait for review to catch them. Put temporary files in /tmp.