import-host

Import host

Bootstrap the v1.0 hot tier (USER.md + PROJECT.md) from AI-context files you've already written for Claude Code, Aider, Cursor, Continue, Windsurf, or AGENTS.md (the OpenCode/agent-rules standard). The skill is read-only against your host files and explicit-confirm against second-brain writes.

Steps

1. Detect candidates

Walk known locations and report what exists. Search at two scopes: home ($HOME) and the current repo root (the directory containing .git, walking up from cwd).

declare -a CANDIDATES=(
  "$HOME/CLAUDE.md"
  "$HOME/AGENTS.md"
  "$HOME/.cursorrules"
  "$HOME/.windsurfrules"
  "$HOME/.continuerules"
  "$HOME/.aider.conf.yml"
  "$HOME/.claude/CLAUDE.md"
  "$HOME/.claude/instructions.md"
)

GIT_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
if [ -n "$GIT_ROOT" ]; then
  for f in CLAUDE.md AGENTS.md .cursorrules .windsurfrules .continuerules .aider.conf.yml instructions.md; do
    [ -f "$GIT_ROOT/$f" ] && CANDIDATES+=("$GIT_ROOT/$f")
  done
fi

for c in "${CANDIDATES[@]}"; do
  if [ -f "$c" ]; then
    LINES=$(wc -l < "$c" | tr -d ' ')
    printf '  %s (%s lines)\n' "$c" "$LINES"
  fi
done

Report the matched list to the user. If nothing matches, exit with: "No host AI-context files found — run /second-brain:setup to scaffold from scratch."

2. Categorize each file

For each detected file, read the first ~60 lines. Decide whether the content is primarily:

• User-level preferences — global how-to-behave rules (tone, style, "never do X", language preferences, formatting defaults). Targets USER.md.
• Project-level facts — repo-specific Goal, State, Conventions, decisions, blockers. Targets the active repo's PROJECT.md.
• Mixed — recommend splitting; propose a USER.md slice and a PROJECT.md slice.

Files at $HOME are usually user-level. Files at $GIT_ROOT are usually project-level. The first ~60-line read confirms.

Report the categorisation to the user before any writes.

3. Propose USER.md content

For files (or slices) categorized as user-level:

1. Distill the content into ≤15 short bullet lines of cross-project preferences. Drop verbose prose, repo-specific facts, and anything stale.
2. Show the proposed USER.md content as a single block.
3. Prompt: Append these <N> preferences to USER.md? (Y / N / edit)
4. On Y: for each preference, call pin_to_user(text: "<preference>"). The MCP tool enforces a 15-line cap on USER.md and adds a dated - [YYYY-MM-DD] … entry; on overflow it returns {ok: false} and the skill must surface the rejection.
5. On edit: let the user revise the block, then re-prompt.
6. On N: skip.

If ~/.second-brain/USER.md does not exist yet, the first pin_to_user call will create it with the standard header.

4. Propose PROJECT.md content

For files (or slices) categorized as project-level, resolve the active project slug:

SLUG=$(basename "$(git rev-parse --show-toplevel 2>/dev/null || pwd)")

If ~/.second-brain/projects/$SLUG/PROJECT.md does not exist, instruct the user to run /second-brain:setup first — this skill fills in content but does not scaffold the file.

If it exists, propose section-by-section:

• Goal (≤3 lines): show your distilled draft and prompt Replace existing Goal? (Y/N/edit). Apply via Edit tool — replace the body of the ## Goal section only.
• Conventions (≤5 lines): same flow, target ## Conventions.
• Recent decisions (≤3 entries): for each, prompt and call pin_to_project(text: "<decision text>", slug: "$SLUG", section: "decisions") on accept. The tool prefixes - [decision] automatically.
• Open blockers (≤15 lines): for each, prompt and call pin_to_project(text: "<blocker text>", slug: "$SLUG", section: "blockers") on accept. The tool prefixes - [active] automatically.

Skip ## State and ## Cross-references — those are runtime-maintained, not import targets.

5. Skip duplicates

Before each pin_to_user or pin_to_project proposal, grep the destination file for the candidate text. If a fuzzy match exists, prompt: <text> already present (or close); skip / replace? and act accordingly.

6. Done

Report a one-block summary:

# Import summary
- USER.md: 4 preferences appended (skipped 1 duplicate)
- PROJECT.md (my-repo):
  - Goal updated
  - Conventions updated
  - 2 [active] blockers added
  - 1 [decision] decision added
- Source files left untouched.

Suggest follow-ups: /second-brain:lint (catch any orphan or dead references introduced by the import) and /second-brain:status (sanity-check hot-tier byte counts stay under cap).

Notes

• This is a bootstrap skill — it is most useful right after /second-brain:setup. Re-running it later is safe but will mostly hit the duplicate-skip path.
• The skill never deletes or modifies your host files (~/CLAUDE.md, .cursorrules, etc.). They stay where they are.
• All writes go through the v1.0 MCP tools (pin_to_user, pin_to_project) or direct Edits on PROJECT.md. There is no critic-gate, no persona/quality-rules file, no archive_to_wiki invocation here — those are explicit user actions handled by /second-brain:improve.
• Hot-tier cap reminder: USER.md ≤ 15 lines (enforced by pin_to_user); USER.md + PROJECT.md combined ~3200 bytes target. If a proposed import would push over, distill harder before re-trying.