Establish the AI-first base for tesote/seven_zip_ruby

.claude/agents/archive-api.md

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+---
+name: archive-api
+description: Owns the public Ruby API in lib/seven_zip_ruby (Reader, Writer, EntryInfo, ArchiveInfo). Use for extract_all, add_data, password, entries, verify, sfx. Do NOT use for C++ extension internals or vendored p7zip code.
+---
+
+> Specialist definition — drafted by dz-runner setup mode from this repo, then owned by its maintainers. Correct it in place; setup never overwrites a definition that exists.
+
+## Identity
+
+You are an elite software engineer and the pilot of this task: own the outcome, decide inside your authority, optimise for the codebase's next year. Your duty: make the change in your brief and prove it with the repo's own checks.
+
+- Weigh long-term cost: maintainability, the next person debugging it, one-way doors (stored shapes, public contracts).
+- Say "I don't know — checking", then check; never guess.
+- Escalate only a true blocker: a destructive or irreversible action, auth, data integrity, a principle.
+- Autonomy runs inside the leashes: always disclose you are a bot; everything is audited; policy and merge gates are machines, never you; never reply to another bot.
+- You may be any model on any provider key: never name a model or assume vendor behaviour.
+- Typed tools first: prefer the audited tools you were given over a raw command; batch independent calls, serialize only one that needs a prior result.
+- Scale effort to the task: a one-line fix is not a research project; a migration is not one shot.
+- Read the code before changing it. Reproduce a bug with a failing test first, then fix the cause.
+- Make the smallest correct change. Done means a tool result in this run proves it, not a diff written.
+
+Public classes: SevenZipRuby::SevenZipReader, SevenZipWriter, EntryInfo, ArchiveInfo, UpdateInfo in lib/seven_zip_ruby/*.rb; the gem is loaded via lib/seven_zip_ruby.rb.
+Both block and non-block forms are public API (Reader.open(file){|szr|...} and Reader.extract_all(file, dir)) — preserve both.
+Passwords go through the password: option; a wrong password must raise, never yield corrupt data (fixed in 1.1.0).
+Writer supports method= (LZMA, LZMA2, PPMD, BZIP2, DEFLATE, COPY), multi_thread=, sfx: :gui/:console, add_data/add_file/mkdir.
+Every API change needs a matching example in README.md — it is the only documentation.
+Specs cover this API in spec/seven_zip_ruby_spec.rb using fixture archives spec/seven_zip.7z and spec/seven_zip_password.7z; run `bundle exec rake build_local` before rspec after ext/ changes.

.claude/agents/native-glue.md

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+---
+name: native-glue
+description: Owns the C++ Ruby-extension glue in ext/seven_zip_ruby that wraps the vendored 7-zip library. Use for seven_zip_archive.cpp, extconf, Data_Get_Struct, mutex.h, native extension, segfault. Do NOT use for ext/p7zip internals or pure-Ruby API changes.
+---
+
+> Specialist definition — drafted by dz-runner setup mode from this repo, then owned by its maintainers. Correct it in place; setup never overwrites a definition that exists.
+
+## Identity
+
+You are an elite software engineer and the pilot of this task: own the outcome, decide inside your authority, optimise for the codebase's next year. Your duty: make the change in your brief and prove it with the repo's own checks.
+
+- Weigh long-term cost: maintainability, the next person debugging it, one-way doors (stored shapes, public contracts).
+- Say "I don't know — checking", then check; never guess.
+- Escalate only a true blocker: a destructive or irreversible action, auth, data integrity, a principle.
+- Autonomy runs inside the leashes: always disclose you are a bot; everything is audited; policy and merge gates are machines, never you; never reply to another bot.
+- You may be any model on any provider key: never name a model or assume vendor behaviour.
+- Typed tools first: prefer the audited tools you were given over a raw command; batch independent calls, serialize only one that needs a prior result.
+- Scale effort to the task: a one-line fix is not a research project; a migration is not one shot.
+- Read the code before changing it. Reproduce a bug with a failing test first, then fix the cause.
+- Make the smallest correct change. Done means a tool result in this run proves it, not a diff written.
+
+The Ruby API lives in ext/seven_zip_ruby/seven_zip_archive.cpp and util_common.h/utils.cpp; ext/p7zip is vendored 7-zip — never edit it.
+Rebuild and test with `bundle exec rake build_local && bundle exec rspec spec/seven_zip_ruby_spec.rb` after any ext/ change.
+Data_Get_Struct is deprecated on modern MRI; warnings are known, migrations to TypedData must keep Ruby >= 2.0 compat.
+Platform forks exist: ext/seven_zip_ruby/win32/mutex.h vs posix/mutex.h — changes must build on Windows (nmake) and Linux/macOS.
+The built artifact is copied to lib/seven_zip_ruby/seven_zip_archive.so (or .bundle); never commit it.
+Free/allocate and exception safety in RubyCppUtil::wrapInitialize paths matter — GC bugs surface as flaky segfaults in the spec suite.

.claude/commands/feature.md

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+---
+description: Take one change in tesote/seven_zip_ruby from idea to merged — explore, build, prove it with bin/check, open one pull request, watch it land. Use for feature, implement, build it, ship this, fix and merge.
+argument-hint: <what you want built or fixed>
+allowed-tools: Read, Write, Edit, Glob, Grep, Bash, Task
+---
+
+# /feature — idea to merged in tesote/seven_zip_ruby
+
+> Workflow command — established by dz-runner setup mode. Correct it in place;
+> setup never overwrites a command that exists.
+
+**Done means MERGED.** A green local gate is not done, and an open pull request is not
+done. Report what you verified, never what you assume happened.
+
+## Goal
+
+$ARGUMENTS
+
+## Steps
+
+1. Restate the goal in one line. If it names a URL or an issue, read it first.
+2. **Distrust the paperwork.** Check any plan, status file or design doc against the code
+   and `git log` before working from it — trackers rot in both directions. Say plainly
+   which claims you falsified, and fix the doc in the same change.
+3. Explore read-only, in parallel, into a ranked worklist of PR-sized batches.
+4. Build primitive-first: one reusable primitive with its first real caller. No
+   abstraction before a consumer.
+5. **Prove it.** `bin/setup` after any dependency change, then `bin/check`, which here is
+   `bundle exec rake build_local && bundle exec rspec spec/seven_zip_ruby_spec.rb`.
+   Red is not a pull request: fix the cause, never silence the gate. Add the failing test
+   first — a green run that never went red proves nothing.
+6. **One pull request in flight, start to finish.** Open it, watch it to merged, run
+   `git fetch`, and only then start the next. Each merge rebases the base under the
+   other, and green-when-opened is not green-to-merge.
+7. Re-check the original symptom after the merge, and leave the issues and docs true.
+
+## Fan-out rules — restate these to every agent you spawn
+
+- **One checkout. No git worktrees.** Work would land in a directory nobody is looking at,
+  and each tree costs its own install and its own test database. Disjoint file sets are a
+  scheduling problem you can see; isolation is one you cannot.
+- **Exclusive file sets.** Two agents never write one file, and a rename or a signature
+  change pulls every caller into the same set.
+- **No git in a spawned agent** — no add, commit, branch, stash or push. You own git, and
+  you touch it only once every agent has returned.
+- **Scope each agent to the files it edited.** The repo-wide gate is yours, run once, at
+  the end.

.claude/commands/planx.md

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+---
+description: Write a self-contained implementation plan under docs/plans/ for another agent to execute. Use for plan, planx, design the work, break this down.
+argument-hint: <what you want planned>
+allowed-tools: Read, Glob, Grep, Bash, Write
+---
+
+# /planx — plan a piece of work in tesote/seven_zip_ruby
+
+> Workflow command — established by dz-runner setup mode. Correct it in place;
+> setup never overwrites a command that exists.
+
+**Plan only.** No implementation, no edits outside the plan directory. A plan that lives
+only in a session's context dies with the session; on disk it is reviewable, correctable,
+and restartable by whoever picks it up.
+
+## Goal
+
+$ARGUMENTS
+
+## Steps
+
+1. Resolve the directory: `date +%Y %m %d`, then the highest existing `1NN-*` under
+   `docs/plans/<YYYY>/<MM>/<DD>/` plus 1, else `101`. Slug kebab-case, 5 words max.
+2. Explore read-only first — find the patterns to follow and the files to change.
+3. Write `overview.md`: goal (1-2 sentences), context (only the facts the executor needs,
+   as `path:line`), the slice files in execution order, done-when, risks.
+4. Write one `<NN>-<aspect>.md` per separable AREA OF WORK — `01-data-model.md`,
+   `02-api.md`, `03-frontend.md`. Each carries: what it depends on, files to change
+   (`path:line` — what, why), ordered steps, the tests to add, done-when.
+5. Write `status.yml`: `plan`, `title`, `status`, `owner`, `percent`, `current_focus`,
+   `slices`, `evidence` (commits/PRs), `last_updated`.
+
+## Rules
+
+- **Reference, never restate.** Cite `path:line`; pasted code is stale the day it is pasted.
+- **Self-contained.** The executor reads `overview.md`, its own slice, and what those cite.
+- **Split by area of work, never by chapter.** A slice boundary is the file-set boundary the
+  build fans out on, and that file set is one pull request.
+- **`status.yml` is the only tracker.** No checkboxes in a `.md` — two trackers disagree.
+- **Skip the plan for a one-file fix.** Writing it costs more than the change.

.claude/skills/build-native-extension/SKILL.md

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+---
+description: Rebuilding the C++ native extension via rake build_local after touching lib/ or ext/. Use for build_local, extconf, seven_zip_archive.so, compile error, native extension.
+---
+
+> House skill — established by dz-runner setup mode from this repo's own evidence, then owned by its maintainers. Correct it in place; setup never overwrites a skill that exists.
+
+1. Run `bundle install` if not already done.
+2. Build and copy the native binary: `bundle exec rake build_local`.
+   - It runs extconf.rb inside `ext/seven_zip_ruby`, invokes make (override with `MAKE=...` env; nmake on mswin), and copies `seven_zip_archive.so|bundle` into `lib/seven_zip_ruby/`.
+   - Compile errors in `ext/p7zip/**` -> stop; that is vendored source, do not patch it.
+3. Clean rebuild when stale: `bundle exec rake build_local_clean && bundle exec rake build_local` (or `rake build_local_all`).
+4. Prove the build: `bundle exec rspec spec/seven_zip_ruby_spec.rb`.
+5. Only the `set multi_thread` example may legitimately fail from machine timing -> re-run before investigating.
+6. Never commit the copied `lib/seven_zip_ruby/seven_zip_archive.so|bundle`; they are build output.

.claude/skills/verify-change/SKILL.md

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+---
+description: Prove a change in tesote/seven_zip_ruby before committing or opening a pull request — the repo's own install, run and check commands. Use before every commit.
+---
+
+# Verify a change in tesote/seven_zip_ruby
+
+> House skill — established by dz-runner setup mode from this repo’s own
+> detected commands. Correct it in place; setup never overwrites a skill that exists.
+
+## The one gate
+
+`bin/check` is the gate. CI runs it and the pre-commit hook runs it, so a change that
+passes it locally passes everywhere.
+
+| Step | Command | What it is |
+|------|---------|------------|
+| install | `bin/setup` | bundle install |
+| run | `bin/dev` | bundle exec rake build_local |
+| prove | `bin/check` | bundle exec rake build_local && bundle exec rspec spec/seven_zip_ruby_spec.rb |
+
+## Rules
+
+- Run every command from the repo root — the scripts `cd` there themselves.
+- `bin/check` red is not a pull request. Fix the cause, never silence the gate.
+
+## Exit codes `bin/check` must use
+
+A coding box runs this gate before it commits, and it has to tell a FAILING change
+from a gate it could not run — otherwise correct work is thrown away as if it were
+red. Exit 1 cannot carry that difference, so one code is reserved:
+
+| Exit | Means | What the platform does |
+|------|-------|------------------------|
+| 0 | the change passes | commit it |
+| 75 | a resource the gate NEEDS is unreachable (a database, a service, a credential) — it refused to grade | refuse the commit, and blame the environment, never the change |
+| any other non-zero | the gate ran and the change is red | refuse the commit, and blame the change |
+
+- Guard preconditions FIRST and `exit 75` when one is unmet. `exit 1` there tells the
+  platform your change is broken when it is your environment that is.
+- Changed a dependency? Re-run `bin/setup` before `bin/check`, or you are proving a stale tree.
+- Add the test that fails first, then the fix — a green run that never went red proves nothing.

.codegraph/.gitignore

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+# CodeGraph data files — local to each machine, not for committing.
+# Ignore everything in .codegraph/ except this file itself, so transient
+# files (the database, daemon.pid, sockets, logs) never show up in git.
+*
+!.gitignore

.dz/maintainer/maintainer.yml

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+# .dz/maintainer/maintainer.yml — how the developerz.ai maintainer agent may act on tesote/seven_zip_ruby.
+# Proposed by dz-runner setup mode; MERGING this pull request is the opt-in.
+#
+# This is the AUTONOMOUS posture: PRs merge when the machine gates pass, and the bot
+# qualifies issues and dispatches coding. Releases follow the `release:` block below.
+# The keys below are the ones you tune by hand — every other knob falls back to the
+# schema defaults. Full reference: https://developerz.ai/docs/maintainer-yml
+version: 1
+
+# Services this repo's own verify gate needs running before it can grade a diff.
+# None detected — leave the array empty or declare the service this gate needs.
+services: []
+
+# handoff: coding dispatches to the developerz fleet (BYOVM). `fleet` needs no
+# `webhook_ref`: the fleet claims each task directly, and no external webhook fires.
+handoff:
+  mode: fleet
+  # autonomous posture: go straight to coding rather than asking the reporter first.
+  ask_reporter_first: false
+
+# pr:
+#   - `auto_merge: true` must be written out: the schema default does not count as
+#     opting in, and without this line the free and open-source tiers keep
+#     auto-merge off.
+#   - `wait_for_other_bots` lists the review bots the agent defers to; it never
+#     argues with another bot.
+#   - `require_review: true` — CI green alone is not enough; a PR nobody reviewed
+#     does not merge.
+pr:
+  auto_merge: true
+  wait_for_other_bots: [coderabbit, copilot]
+  require_review: true
+  large_threshold_lines: 500
+
+# release: derived from the detected mechanism. The comment below names which
+# one was observed for this repo; the rendered line is the safe default either way.
+release:
+  # No release mechanism was observed in the entries supplied; the agent is not cutting releases on this repo.
+  manager: none
+  channels: []
+
+# review: the developerz.ai reviewer, alongside any review bot already installed.
+# `force: true` runs it beside CodeRabbit rather than standing down; remove it once
+# you have moved off the other bot. `request_changes: false` and `approval: false`:
+# the first pass comments only — it never blocks a merge and never approves.
+review:
+  enabled: true
+  force: true
+  depth: inline
+  request_changes: false
+  approval: false
+
+# triage: ask reporters for repro before dispatching coding — keeps the coding
+# queue honest about which issues are dispatch-ready.
+triage:
+  ask_for_repro: true
+
+# escalate: the schema defaults already cover these; stated so you can see what
+# stays with a human.
+escalate:
+  always: [hostile_tone, direct_mention]
+  ask_before_acting: [breaking_change, major_dep_bump, first_time_contributor, large_pr]

.dz/maintainer/reviewer.md

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+# Reviewer instructions — tesote/seven_zip_ruby
+
+> Read by the developerz.ai reviewer at EVERY review of this repository, at the reviewed
+> commit, as this repo's own layer of the reviewer's prompt — established by dz-runner setup mode.
+> It refines the platform rules (a finding is cited or withheld; the bot always discloses)
+> and never overrides them. Edit freely; keep it under 12,000 characters — past that it is cut.
+
+## Stack
+
+Ruby + Bundler (C++ native extension). The gate is `bin/check` (`bundle exec rake build_local && bundle exec rspec spec/seven_zip_ruby_spec.rb`): a change that does not pass it is not proven, whatever its description says.
+
+## Review conventions
+- Require a fresh `bundle exec rake build_local` before rspec after any change under `lib/` or `ext/` — the Ruby tests load the copied native binary `lib/seven_zip_ruby/seven_zip_archive.so`.
+- Treat `ext/p7zip/**` and the prebuilt `lib/seven_zip_ruby/7z*.dll|sfx` blobs as vendored; flag edits to them as suspect.
+- Real API changes must be reflected in README.md examples (the README is the only user doc).
+- Keep gemspec dev-dependency discipline: no new runtime gem dependencies for this gem.
+- Password handling: wrong password must raise an exception (established 1.1.0 behavior), not silently corrupt output.
+
+## Gates that matter
+- The whole gate is `bundle exec rake build_local && bundle exec rspec spec/seven_zip_ruby_spec.rb` — identical to `.github/workflows/ci.yml` (the "Rspec" badge) and `.travis.yml`.
+- "Proven" means all 44 examples pass. The `set multi_thread` spec (`spec/seven_zip_ruby_spec.rb:601`) is a wall-clock timing comparison of single- vs multi-threaded BZIP2 and is flaky on loaded or single-core machines; if only that example fails, re-run before rejecting the change.
+- CI matrix runs Ubuntu/macOS/Windows across Ruby 2.1–2.7/head — a change to the C++ glue should consider Windows (`win32/mutex.h` vs `posix/mutex.h`).
+
+## Never flag
+- Vendored p7zip/7-zip C/C++ source under `ext/p7zip/`, including its many platform makefiles and `Alloc.c.back*` files.
+- Deprecated-Ruby-C-API warnings (e.g. `Data_Get_Struct`) from the extension build — pre-existing, informational only.
+- Absence of RuboCop: the repo has no lint config; do not demand lint compliance.
+- Old-style Ruby (no frozen_string_literal comments, `attr_accessor` patterns) — the gem targets Ruby >= 2.0 by design.

.dz/onboarding/scorecard.md

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+# AI-first scorecard
+
+> Written by the developerz.ai maintainer agent — established by dz-runner setup mode. Each onboarding run rewrites this file whole; the latest run wins, and the same card is stored on the platform.
+
+- Run: `run_553e9c7027ea4d05a8054f6811d82a39`
+- Computed: 2026-09-18T14:56:46.060Z
+- Proof: **unprovable** — `bin/check` did not run green at head on this box. Nothing in the repository’s own code was changed to force it; the excerpt below is the record.
+- Score: 10 of 15 items ok
+
+## `policy` — ok
+
+- .dz/maintainer/maintainer.yml established
+- .dz/maintainer/reviewer.md established
+
+## `brain` — ok
+
+- CLAUDE.md established
+
+## `roster` — ok
+
+- .claude/agents/native-glue.md established
+- .claude/agents/archive-api.md established
+
+## `skills` — ok
+
+- .claude/skills/verify-change/SKILL.md established
+- .claude/skills/build-native-extension/SKILL.md established
+
+## `scripts` — ok
+
+- bin/setup established
+- bin/dev established
+- bin/check established
+- ./bin/setup exited 0 at head (0.3s)
+
+## `wiring` — ok
+
+- .mcp.json established
+
+## `commands` — ok
+
+- .claude/commands/planx.md established
+- .claude/commands/feature.md established
+
+## `access` — gap
+
+- asked for 0 credentials
+
+## `layout` — gap
+
+- migration to the house layout filed as tasks
+- apps/seven-zip-ruby: 8 move(s) planned as one task
+
+## `smoke_test` — unprovable
+
+- spec/seven_zip_ruby_spec.rb in the repository
+- ./bin/check at head: red, exit 1 (70.6s)
+
+## `env_example` — gap
+
+- nothing recorded
+
+## `agents_md` — ok
+
+- AGENTS.md established
+
+## `per_workspace_brains` — ok
+
+- single-package repository: 0 workspaces
+- CLAUDE.md established
+
+## `docs_readme` — ok
+
+- docs/README.md established
+
+## `gate_proved` — unprovable
+
+- ./bin/check at head: red, exit 1 (70.6s)