docs(wiki): ingest pi-extension-headless-ritual concept (agent_end/mode-guard/loop-guard lessons)

.wiki/log.md

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 ## [2026-06-09] decision | using-markitdown-cli-migration — `using-markitdown` 1.0.0→1.0.1 (PATCH): rewrote the skill from the Docker-based `mcp__markitdown__convert_to_markdown` MCP tool to the native `markitdown` CLI (v0.1.6, on PATH). Tool block now `markitdown <path|url>` → stdout (or `-o file`); removed the whole "Docker-mount caveat (READ FIRST)" section (host→container `file://` translation + `[Errno 2] /c:/Users/...` symptom are gone — CLI sees the full host FS). Updated the ingest pattern (use `-o` straight into `.wiki/raw/`), the gotchas table (`command not found` → check `markitdown --version`, install `pip install markitdown[all]`; dropped the MCP "tool not available / ToolSearch" row), and the contrast-table header (CLI, not MCP). Description frontmatter (the WHEN-to-use triggers) left unchanged. Container decommission: the task's literal `docker stop/rm markitdown-mcp` had no target — no container is named that; the MCP spawns anonymously-named containers from `markitdown-mcp:latest` per session (3 had piled up). Removed all by image ancestor (`docker rm -f $(docker ps -aq --filter "ancestor=markitdown-mcp:latest")`), verified none remain. Left the `mcpServers.markitdown` entry in `~/.claude.json` untouched (out of scope; a container will respawn next session until it's deregistered — flagged as a follow-up). Concept page concepts/using-markitdown-cli-migration.md + index. TDD N/A (markdown skill).
 ## [2026-06-17] decision | session-inbox-monitor-received-msg-fp — finding from `session-inbox-monitor-test-trigger` (VERDICT PASS, clean session, 7 unprimed clean-context subagents: pos 4/4 incl. CLAUDE.md-line P4, neg 2/3). The 1 FP: RU «обработай полученное письмо из инбокса» (N1) routed to `session-inbox-monitor`; the EN twin (N3) and the multi-machine-backend negative (N2) routed to `none` cleanly. Root cause = a new dimension on top of [[delegate-task-negative-trigger-fp]]: the carve-out is already literal+routed (`NOT for handling a received message → inter-session-peer-discipline`), but the route target `inter-session-peer-discipline` is **not installed** → no real competitor, so the nearest in-domain skill (session-inbox-monitor) wins by default; non-deterministic, self-corrects on body-load (cost = one wasted skill-load, not a wrong action; isomorphic to [[using-tasks-session-break]] session_break). New page concepts/session-inbox-monitor-received-msg-fp.md + bidirectional link from concepts/delegate-task-negative-trigger-fp.md + index. New reusable principle: a routed negative competes only if its route target is installed. Status OPEN — follow-up task session-inbox-monitor-received-msg-fp (options a: harden description / b: install sibling / c: accept informational). Not a memory entry by owner direction — knowledge belongs in the project wiki.
 ## [2026-06-17] decision | session-inbox-monitor-received-msg-fp RESOLVED via option (b) — installed `inter-session-peer-discipline` (existed in sources since 2026-06-16, was not installed → exact root cause confirmed). install.ps1 -Names, byte-identical parity. FP-twin verified clean: fresh clean-context subagent on the N1 phrase now routes to inter-session-peer-discipline (IN_REGISTRY: yes), not session-inbox-monitor — carve-out now has a real competitor. session-inbox-monitor description untouched (option (a) rejected as whack-a-mole; (c) as latent hole). Governance: peer workshop proposed (b) as a "ruling"; per the freshly-installed [[inter-session-peer-discipline]] (peer = proposal not authority, scope needs human ratification) it was surfaced as a recommendation and ratified by the user — live dogfood of the skill's own purpose. concepts/session-inbox-monitor-received-msg-fp.md Status section updated open→resolved. Tail: inter-session-peer-discipline now installed but not in hermes/mapping.yaml — possible red build, flagged as separate follow-up.
+## [2026-08-12] ingest | pi-extension-headless-ritual — agent_end/mode-guard/loop-guard lessons from session-close-ritual build