Bootstrap

/yoke:bootstrap — Phase 0 setup (provider selection + v1.x migration)

Prepares a host project to use Yoke v2.0.0 and ensures .yoke/config.yaml :: canonical_memory.provider is populated. After this skill returns, every other Yoke skill's hard-break pre-flight (sourced from lib/yoke-prelude.sh) will pass.

Objective

Make a project Yoke-ready at v2.0.0 by:

1. Verifying environment dependencies (gh CLI, bash 4+, git repo).
2. Selecting an active canonical-memory provider — either interactively from providers.yaml or via the --provider <name> flag.
3. Detecting v1.x state (legacy <plugin_dir>/memories.json or a v1.x-shaped .yoke/config.yaml) and migrating to the v2.0.0 schema under explicit confirmation, preserving url, name, and default_branch as config_passthrough keys.
4. Writing .yoke/config.yaml from templates/yoke-config.yaml with the selected provider plus any provider-specified passthrough keys.
5. Creating .yoke/runtime/ and .yoke/.gitignore.
6. Pointing the user at /yoke:discover as the next step.

Pre-conditions

• The current directory is the root of a git repository. Bootstrap aborts otherwise.
• gh CLI installed and authenticated. Hard-fails with install instructions if missing — no degraded mode (per concepts/yoke-decision-* in canonical memory).
• bash 4 or newer. macOS users need brew install bash.
• A host CLAUDE.md (created from templates/project-claude-md.md if absent — never overwritten if present).
• <plugin_dir>/providers.yaml exists. Bootstrap aborts if the curated provider registry is missing or unparseable.

Argument parsing

• --provider <name> — non-interactive override. The value must match a key under providers: in <plugin_dir>/providers.yaml. Aborts with a registered-providers listing if not.
• --non-interactive — flag. Requires --provider. Skips every confirmation prompt; aborts on any ambiguity that would otherwise prompt the user.
• --canonical-memory <url> — optional URL for the per-provider passthrough keys (forwarded to the active provider plugin verbatim). Equivalent to the legacy v1.x canonical_memory.url.

Pre-flight

Bootstrap is the only Yoke skill that does NOT source lib/yoke-prelude.sh — it is the migration entry point. Sourcing the prelude here would make bootstrap self-defeating on a v1.x project.

Bootstrap does source the working-memory paths helper and lib/canonical-memory/resolve-provider.sh for validation only:

source "$PLUGIN/lib/working-memory/paths.sh"
# resolve-provider.sh is used to validate provider names against
# providers.yaml; it is NOT used to require a provider in
# .yoke/config.yaml (that is the job of every other skill's
# hard-break pre-flight call into the prelude helper).
source "$PLUGIN/lib/canonical-memory/resolve-provider.sh"

What it does

Step 1 — verify environment

• Check that the current directory is a git repo (git rev-parse --git-dir). Abort with a clear error if not.
• Check gh --version succeeds. If not, abort and link to https://cli.github.com/.
• Check bash --version reports 4 or newer. On macOS, suggest brew install bash.
• Check <plugin_dir>/providers.yaml exists and parses. Abort otherwise (this is a packaging error, not a user error).

Step 2 — detect legacy v1.x state

Compute two markers:

• legacy_registry — [ -f "$PLUGIN/memories.json" ]. The v1.x vault registry that lived in the plugin directory.
• legacy_config — .yoke/config.yaml exists at the host project root, AND the canonical_memory.provider key is missing or empty.

If either marker is true, print:

wm: legacy Yoke v1.x state detected. Migrating to v2.0.0 schema.

…and proceed to Flow A — legacy migration. Otherwise, proceed to Flow B — fresh bootstrap.

Step 3 — Flow A: legacy migration

1. Read the existing v1.x state. If legacy_registry: read the first entry from <plugin_dir>/memories.json and extract url, name, default_branch. If legacy_config: read .yoke/config.yaml and extract canonical_memory.url, canonical_memory.name, canonical_memory.default_branch. Either source provides the same three keys.
2. Default the migrated provider to bedrock. Bedrock was the only viable v1.x backend, so the migration default is deterministic. If --provider was passed with a value other than bedrock, abort with:

   wm: --provider <name> conflicts with v1.x migration default (bedrock).
   Re-run without --provider, or use --provider bedrock to be explicit.
   

   The user can always re-bootstrap after the migration to switch providers.
3. Confirm interactively (skipped under --non-interactive):

   Migrating Yoke v1.x → v2.0.0:
     provider: bedrock
     passthrough: url=<...>, name=<...>, default_branch=<...>
   This will:
     - write .yoke/config.yaml with canonical_memory.provider: bedrock
     - remove <plugin_dir>/memories.json (after the config write
       succeeds)
   Proceed? [y/N]
   

   On n reply, abort without modifying any files. On y reply, continue.
4. Write .yoke/config.yaml from templates/yoke-config.yaml substituting:
   • canonical_memory_provider → bedrock
   • canonical_memory_url → captured url
   • the captured name and default_branch go under canonical_memory: as additional keys (per providers.yaml bedrock.config_passthrough: [url, name, default_branch])
   • created_at (today's ISO 8601 date)
   • yoke_version (from this plugin's plugin.json)
   • host_project_name, host_actor_name (from the working-memory host-actor helper)
5. Create .yoke/runtime/ (idempotent — no-op if it exists) and .yoke/.gitignore containing exactly the line runtime/.
6. Verify the new config, then delete the legacy memories.json if it existed. Order is strict: write new config → verify provider key parses → delete memories.json. The legacy file is never deleted before the new config is in place.

Step 4 — Flow B: fresh bootstrap

1. Read available providers from <plugin_dir>/providers.yaml.
2. Select the active provider:
   • If --provider <name> was passed: validate it against the providers: keys; abort with the available-providers list on mismatch.
   • Else if --non-interactive was passed: abort with --non-interactive requires --provider.
   • Else if there is exactly one provider entry: select it automatically (with a one-line note to the user).
   • Else (multiple providers, interactive mode): prompt the user with the list, e.g.:

     Available canonical-memory providers:
       1) bedrock — Markdown frontmatter graph in a separate git repo
                    (requires plugin: claude-bedrock ≥ 0.1.0)
       2) <other> — <description>
     Select a provider [1-N]:
     

3. Warn if requires.plugin is not installed. When the chosen provider entry sets requires.plugin, check whether the named peer plugin is installed (Claude Code's plugin list — exact detection mechanism is the framework's responsibility, not the skill's). If not, print a warning but continue:

   warning: provider 'bedrock' requires the 'claude-bedrock' plugin (>=0.1.0).
   It does not appear to be installed. Install it via
       claude plugin install claude-bedrock
   before invoking /yoke:search-canonical-memory or /yoke:canonize.
   

   This is a warning, not an abort, because the user may install the peer plugin between bootstrap and first use.
4. Prompt for config_passthrough keys named in the provider's entry. For each key in providers.<name>.config_passthrough that is not already provided via flag (e.g. --canonical-memory):

   <key> [<default-or-empty>]:
   

   Skipped under --non-interactive; defaults are used.
5. Write .yoke/config.yaml from templates/yoke-config.yaml substituting the selected provider into canonical_memory.provider plus the captured passthrough values.
6. Create .yoke/runtime/ and .yoke/.gitignore (line: runtime/).

Step 5 — re-bootstrap detection

If .yoke/config.yaml already exists AND has a non-empty canonical_memory.provider key (i.e. it's already on the v2.0.0 schema):

• In interactive mode, ask re-bootstrap? overwrite existing config? [y/N]. Default = n (no-op exit 0). On n, abort without touching any file.
• Under --non-interactive, abort with exit 0 and a short already-bootstrapped message — never overwrite an existing v2.0.0 config without explicit user consent.

Step 6 — host CLAUDE.md

• If the host has no CLAUDE.md: copy templates/project-claude-md.md to ./CLAUDE.md.
• If the host has a CLAUDE.md: leave it alone. Print a hint that Yoke parses ## Testing, ## Linting, ## Build sections — point at docs/canonical-memory-setup.md.

Step 7 — next steps

Print:

• "Yoke is ready. Run /yoke:discover \"<your idea>\" to start your first task."
• A pointer to docs/quickstart.md.
• The selected provider name and a one-line summary of the passthrough keys captured.

Output contract

• Exit 0 on success.
• Exit non-zero with a clear, actionable error message on any failure listed above.
• File writes are idempotent and reversible. The skill never destroys user content without explicit confirmation.
• Migration ordering is strict: write new config → verify provider key parses → delete memories.json. The legacy registry file is never deleted before the new config write succeeds.
• Re-bootstrap on an existing v2.0.0 config requires explicit y consent (interactive) or aborts with already-bootstrapped (non-interactive). Never overwrite silently.

Anti-patterns (do NOT do these)

• Do not source lib/yoke-prelude.sh. Bootstrap is the migration entry point — sourcing the prelude on a v1.x project would make this skill self-defeating. The audit grep (prelude-source-line-audit sensor) explicitly asserts that this file does NOT contain the prelude helper-function name.
• Do not silently default a missing provider. Always select via --provider <name>, an interactive prompt, or the single-entry-only fallback. The PRD invariant says: hard break is preferable to silent default.
• Do not delete <plugin_dir>/memories.json before the new .yoke/config.yaml is in place and verified. Migration must be safe under partial failure.
• Do not overwrite an existing v2.0.0 .yoke/config.yaml without explicit user consent. Re-bootstrap is a y/N prompt, never a default y.
• Do not auto-create gh repos without confirmation. Always ask.
• Do not overwrite an existing CLAUDE.md. The host's CLAUDE.md is the user's, not Yoke's.
• Do not silently degrade if gh is missing. Hard-fail.
• Do not write outside .yoke/, the host CLAUDE.md, the registered memory's checkout path (when applicable), the registry file, and the optional gh repo create call. Bootstrap touches only those surfaces.