chore: wire work-repo kg.mjs prime in SessionStart hook

[dafilipaj]

Summary

Adds a SessionStart hook that runs the productiveio/work knowledge graph's prime --topic=ai-harness when Claude Code sessions start in this repo. Surfaces ai-agent's principles and conventions (32+ docs covering ZFC, token economy, tool boundaries, instruction layering, etc.) — directly applicable to authoring marketplace skills and agents here.

How it works

The hook walks up from $PWD looking for a directory containing both scripts/kg.mjs and knowledge-graph.json — i.e. a productiveio/work clone. On the first match it runs node $d/scripts/kg.mjs prime --topic=ai-harness 2>/dev/null (stderr suppressed), then breaks out of the loop.

The walk stops at $HOME (or /, whichever comes first) so it can't traverse system roots, and the { node ...; break; } form keeps the hook graceful even if kg.mjs itself fails — break exits 0 and the trailing true catches the loop fall-through, so a found-but-failing kg.mjs won't error out the session.

If no productiveio/work clone is found in the walk, the loop falls through to true — sessions stay healthy when it isn't cloned nearby.

Sample output

Topic 'ai-harness' detected (--topic=ai-harness)
32 repo-knowledge-doc nodes — top 5:
  repo-knowledge:ai-agent/principles/root-cause-first.md — Fix root cause, not the local symptom
  repo-knowledge:ai-agent/principles/token-economy.md — Token economy
  repo-knowledge:ai-agent/principles/tool-boundaries.md — Tools are data conduits
  repo-knowledge:ai-agent/principles/zfc.md — Zero Framework Cognition
  repo-knowledge:ai-agent/architecture/deep-modules.md — Prefer deep modules
  ... 27 more — kg.mjs list --type=repo-knowledge-doc --topic=ai-harness

Companion PRs

• productiveio/work#287 — adds the repo-knowledge-doc node type and topic detection
• productiveio/claude-plugins#83 — same hook
• productiveio/ai-agent#1255 — same hook

Test plan

• Start a new Claude Code session in a worktree of this repo (with productiveio/work cloned nearby) and confirm the topic block appears.

• Confirm the hook is graceful when productiveio/work is not nearby — start a session in a folder outside any clone (e.g. /tmp); session should start cleanly with no error.

• Manually run the exact shipped command and confirm exit 0:

  bash -c 'd=$PWD; while [ "$d" != "$HOME" ] && [ "$d" != "/" ]; do [ -f "$d/scripts/kg.mjs" ] && [ -f "$d/knowledge-graph.json" ] && { node "$d/scripts/kg.mjs" prime --topic=ai-harness 2>/dev/null; break; }; d=$(dirname "$d"); done; true'

Generated with Claude Code

[dafilipaj]

Prodiskutirali smo, cilj je da hookovi butu opt-in. Zatvaram za sada.