# Pp Extron > Every Extron spec sheet and user manual, browsable and searchable offline with revision tracking no other Extron tool has. Trigger phrases: `download the Extron manual for`, `get the spec sheet for that projector`, `find the latest Extron doc revision`, `check what Extron literature is new`, `pull the Extron docs for this rack`, `use extron`, `run extron`. - Skill: `mvanhorn-printing-press-libra/pp-extron` (Agent Skill) - Install (CLI): `npx skillmds add mvanhorn-printing-press-libra/pp-extron` - Raw SKILL.md: https://api.skillmd.com/api/skills/mvanhorn-printing-press-libra/pp-extron/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Research & Search - License: Apache-2.0 - Author: mvanhorn (https://skillmd.com/u/mvanhorn-printing-press-libra) - Updated: 2026-09-09 - Page: https://skillmd.com/skills/mvanhorn-printing-press-libra/pp-extron --- # Extron — Printing Press CLI ## Prerequisites: Install the CLI This skill drives the `extron-pp-cli` binary. **You must verify the CLI is installed before invoking any command from this skill.** If it is missing, install it first: 1. Install via the Printing Press installer. It defaults binaries to `$HOME/.local/bin` on macOS/Linux and `%LOCALAPPDATA%\Programs\PrintingPress\bin` on Windows: ```bash npx -y @mvanhorn/printing-press-library install extron --cli-only ``` 2. Verify: `extron-pp-cli --version` 3. Ensure the reported install directory is on `$PATH` for the agent/runtime that will invoke this skill. If the `npx` install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.5 or newer). This installs into `$GOPATH/bin` (default `$HOME/go/bin`), so add that directory to `$PATH` instead: ```bash go install github.com/mvanhorn/printing-press-library/library/devices/extron/cmd/extron-pp-cli@latest ``` If `--version` reports "command not found" after install, the runtime cannot see the binary directory on `$PATH`. Do not proceed with skill commands until verification succeeds. Extron publishes spec sheets and manuals at extron.com, but finding them means browser tabs, letter-scoped tables, and a WAF that blocks plain curl. extron-pp-cli syncs the whole literature catalog into a local database, then lets you list, search, download, and track revisions from the terminal — including what's new (literature recent), which downloaded docs went stale (literature updates), and which doc types a rack's models are missing (catalog completeness). ## When to Use This CLI Use extron-pp-cli whenever an agent or integrator needs Extron spec sheets, user manuals, design/product guides, Declarations of Conformity, or Revit BIM families for a project — browsing the official literature library, checking what changed, assembling doc sets for a rack, or verifying downloaded PDFs are current and complete. ## Anti-triggers Do not use this CLI for: - Do not use this CLI to control or configure Extron AV devices (SIS/TCP, SSH, IP Link web interfaces) — this CLI covers literature only. - Do not use this CLI for Extron firmware files or software downloads — the literature library does not include them. - Do not use this CLI for non-Extron documentation or generic AV manuals. ## Unique Capabilities These capabilities aren't available in any other tool for this API. ### Local catalog that compounds - **`catalog sync`** — Build the local Extron literature catalog, walking the alphabetical index the site only exposes a letter at a time. Bare `catalog sync` fetches the first index page per letter bucket — a fast baseline of roughly 1,200 documents, with large categories truncated at the page-1 ceiling. `--full` follows each category's pagination and is what produces the complete catalog (roughly 3,600 documents and up). A failed letter bucket is retried and skipped rather than aborting the crawl, so a 36-bucket `--full` walk survives a flaky bucket. _Run this first — every local read depends on it, and it is not the same command as top-level `sync`._ ```bash extron-pp-cli catalog sync --full --timeout 15m --max-duration 4h --json ``` - **`literature updates`** — See which downloaded spec sheets and manuals have a newer revision available upstream, so project shares never run stale docs. _Use this before commissioning or re-quoting to catch docs superseded since the last sync._ ```bash extron-pp-cli literature updates --dir ./docs --json ``` - **`catalog completeness`** — Per-model gap report across Brochure, Declaration of Conformity, Design Guide, Product Guide, Manual, and Revit BIM — see which doc types each model is missing. _Use it before a bid submittal or commissioning checklist to catch missing compliance or reference docs._ ```bash extron-pp-cli catalog completeness --bom ./rack.csv --json ``` - **`literature recent`** — Newest Extron literature across the whole library, ordered by date, filterable by category and age. _Use it to track manual/firmware-doc releases without re-checking the website._ ```bash extron-pp-cli literature recent --days 30 --category manual --json --select title,date,category,url ``` - **`literature family`** — Browse every document for a product family (DTP, MAV, IPL, DVS, ...) across all alphabetical letters at once. _Use it to pull every doc for a family before writing control code or a design guide review._ ```bash extron-pp-cli literature family dtp --json ``` - **`catalog verify`** — Compare local PDF sizes against the download ledger to flag truncated or mismatched downloads. _Use it after a batch download or sync to confirm every PDF landed complete and current._ ```bash extron-pp-cli catalog verify --dir ./docs --json ``` ### Project-driven assembly - **`literature rack`** — Assemble the full official doc set for every model in a rack bill of materials — report or batch-download in one pass. _Use it when a project's doc binder must match the exact gear list on the job._ ```bash extron-pp-cli literature rack --bom ./rack.csv --download --dir ./docs ``` ## Command Reference **catalog sync** — Build the local literature catalog (run this first) - `extron-pp-cli catalog sync` — fetch the **first index page per letter bucket** (0-9, A-Z). A fast baseline of roughly 1,200 documents, **not the complete catalog**: any category with more than one page of results is truncated at the page-1 ceiling. - `extron-pp-cli catalog sync --full` — also follow each category's pagination. **This is what produces the complete catalog** (roughly 3,600 documents and up). Slower; budget it with `--max-duration`. - `extron-pp-cli catalog sync --letters A,B,C` — narrow to specific letter buckets - `extron-pp-cli catalog sync --full --max-duration 4h --retries 3` — long crawl with a bigger overall budget and more per-letter retries Use bare `catalog sync` to get something searchable quickly; use `--full` before any answer that depends on the catalog being complete — a rack doc binder, a completeness report, or a bid compliance check. `--max-pages` caps pagination per category and truncates in the same way `--full`'s absence does, so leave it unset for a genuinely complete crawl. A letter bucket that fails is retried (`--retries`, default 2) and then skipped, so one bad bucket does not discard the rest of the crawl. Skipped buckets are listed in the summary's `errors` array and counted in `letters_failed`; the run exits non-zero only when every bucket failed, or when `--strict` is passed. The root `--timeout` bounds each letter bucket; `--max-duration` (default 30m) bounds the whole crawl. **Do not confuse `catalog sync` with the top-level `sync`.** Top-level `sync` walks the generated `literature` endpoint resource and refreshes entity lookups — it does not build the catalog. Only `catalog sync` populates the store that `search`, `catalog completeness`, `catalog verify`, `literature recent`, and `literature updates` read. **literature** — Extron literature library index (spec sheets, manuals, guides) - `extron-pp-cli literature` — Fetch the alphabetical literature index for a letter - `extron-pp-cli literature list` — List literature from the local catalog, filterable by category and letter - `extron-pp-cli literature get` — Resolve a product or document name to its official Extron literature - `extron-pp-cli literature download` — Download official spec sheets and manuals as PDFs - `extron-pp-cli literature recent` — Newest literature across the whole library, ordered by date - `extron-pp-cli literature updates` — See which downloaded docs have a newer revision upstream - `extron-pp-cli literature family` — Every document for a product family (DTP, MAV, IPL, DVS, ...) - `extron-pp-cli literature rack` — Assemble the full doc set for every model in a rack BOM **catalog** — Local-catalog reporting - `extron-pp-cli catalog completeness` — Per-model gap report across Brochure, Declaration of Conformity, Design Guide, Product Guide, Manual, and Revit BIM - `extron-pp-cli catalog verify` — Compare local PDF sizes and revisions against the download ledger ### Finding the right command When you know what you want to do but not which command does it, ask the CLI directly: ```bash extron-pp-cli which "" ``` `which` resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code `0` means at least one match; exit code `2` means no confident match — fall back to `--help` or use a narrower query. Under `--json`/`--agent`, an unmatched query returns exit `0` with an empty `matches` array. ## Recipes ### First run: build the catalog Everything local — `search`, `literature list`, `catalog completeness`, `catalog verify` — reads the catalog this builds, so run it before trusting any local result. There are two passes, and the difference matters: ```bash # Fast baseline: first index page per letter bucket, ~1,200 docs. # Large categories are truncated here — this is NOT the complete catalog. extron-pp-cli catalog sync # Complete catalog: follows every category's pagination, ~3,600 docs and up. extron-pp-cli catalog sync --full --timeout 15m --max-duration 4h --json ``` Run the `--full` pass before any answer that depends on completeness — a rack doc binder, a completeness report, a bid compliance check. If you only ran the baseline, a document that exists at Extron can be missing from local search with no error to tell you. `--timeout` bounds each letter bucket, `--max-duration` bounds the whole crawl. Failed buckets are retried and then skipped; check `letters_failed` and `errors` in the summary, then re-run just those buckets: ```bash extron-pp-cli catalog sync --letters A,Q --full --timeout 15m ``` ### What did Extron release this month ```bash extron-pp-cli literature recent --days 30 --json --select title,date,category,url ``` Agent-friendly list of the newest docs with a narrow --select so the payload stays small. ### Stale-doc sweep before commissioning ```bash extron-pp-cli literature updates --dir ./docs --download --dry-run ``` See which project PDFs are superseded and preview the re-download without touching disk. ### Rack doc binder ```bash extron-pp-cli literature rack --bom ./rack.csv --download --dir ./docs ``` Pull the full official doc set for every model on the job in one pass. ### Family reference pull ```bash extron-pp-cli literature family dtp --json ``` All DTP-family docs across every letter of the index, in machine-readable form. ### Bid compliance check ```bash extron-pp-cli catalog completeness --bom ./rack.csv --json ``` Which models are missing a Declaration of Conformity or manual before the submittal. ## Auth Setup No authentication required. Run `extron-pp-cli doctor` to verify setup. ## Agent Mode Add `--agent` to any command. Expands to: `--json --compact --no-input --no-color --yes`. - **Pipeable** — JSON on stdout, errors on stderr - **Filterable** — `--select` keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs: ```bash extron-pp-cli literature --agent --select id,name,status ``` - **Previewable** — `--dry-run` shows the request without sending - **Offline-friendly** — sync/search commands can use the local SQLite store when available - **Non-interactive** — never prompts, every input is a flag - **Read-only** — do not use this CLI for create, update, delete, publish, comment, upvote, invite, order, send, or other mutating requests ### Response envelope Commands that read from the local store or the API wrap output in a provenance envelope: ```json { "meta": {"source": "live" | "local", "synced_at": "...", "reason": "..."}, "results": } ``` Parse `.results` for data and `.meta.source` to know whether it's live or local. A human-readable `N results (live)` summary is printed to stderr only when stdout is a terminal AND no machine-format flag (`--json`, `--csv`, `--compact`, `--quiet`, `--plain`, `--select`) is set — piped/agent consumers and explicit-format runs get pure JSON on stdout. ## Paths and state Agents should treat the CLI's path resolver as part of the runtime contract: - Use `--home ` for one invocation, or set `EXTRON_HOME=` to relocate all four path kinds under one root. - Use per-kind env vars only when a specific kind must diverge: `EXTRON_CONFIG_DIR`, `EXTRON_DATA_DIR`, `EXTRON_STATE_DIR`, `EXTRON_CACHE_DIR`. - Resolution order is per-kind env var, `--home`, `EXTRON_HOME`, XDG (`XDG_CONFIG_HOME`, `XDG_DATA_HOME`, `XDG_STATE_HOME`, `XDG_CACHE_HOME`), then platform defaults. - `config` contains settings like `config.toml` and profiles. `data` contains `credentials.toml`, `data.db`, cookies, and auth sidecars. `state` contains persisted queries, jobs, and `teach.log`. `cache` contains regenerable HTTP/cache files. - Stored secrets live in `credentials.toml` under the data dir. Existing legacy `config.toml` secrets are read for compatibility and leave `config.toml` on the first auth write. - Run `extron-pp-cli doctor --fail-on warn` to surface path and credential-location warnings. `agent-context` exposes a schema v4 `paths` block for agents that need the resolved dirs. - For MCP, pass relocation through the MCP host config. The MCP binary does not inherit CLI flags: ```json { "mcpServers": { "extron": { "command": "extron-pp-mcp", "env": { "EXTRON_HOME": "/srv/extron" } } } } ``` Fleet precedence: an inherited per-kind env var overrides an explicit `--home` for that kind. Use `EXTRON_HOME` or per-kind vars as durable fleet levers, and use `--home` only for a single invocation. Relocation is not reversible by unsetting env vars; move files manually before clearing `EXTRON_HOME`, or `doctor` will not find credentials left under the former root. ## Automatic learning This CLI ships a self-capturing learning loop. The CLI does its own bookkeeping: every invocation is journaled locally, a failed flag followed by a corrected retry auto-derives a `flag_alias` candidate, and a `teach` on a query family without a playbook auto-synthesizes a `playbook_candidate` from the session's journal. Your job is judgment only: `recall` first, act on surfaced candidates, `teach` the final answer, `playbook amend` when you observe a correction. You never record failures by hand. ### Step 1: `recall` before any discovery Before list/search/drill commands on a new user question, run: ```bash extron-pp-cli recall "" --agent ``` The response envelope: ```json { "query": "...", "normalized": "", "query_entities": ["..."], "found": true | false, "match_score": 0.0, "results": [ { "resource_id": "...", "resource_type": "...", "venue": "...", "confidence": 2, "entity_match": "exact|partial|unknown", "source": "taught|preseed|pattern", "warnings": ["..."] } ], "mismatches": [ /* only when --debug-mismatches */ ], "warnings": [ /* top-level */ ], "candidates": [ { "id": 12, "class": "flag_alias | playbook_candidate", "summary": "...", "sightings": 3, "last_seen": "...", "rationale": "...", "next_action": ["", "extron-pp-cli learnings confirm 12"] } ], "playbook": { "query_family": "...", "playbook": { "steps": [ { "cmd": "", "purpose": "..." } ], "entity_slots": ["$ENTITY"], "expected_tool_calls": 3 }, "slots_resolved": { "$ENTITY": { "token": "", "canonical": "" } }, "notes": "" }, "notes": "" } ``` Empty-store short-circuit: if the store has no learnings, playbooks, or candidates yet (recall finds nothing and `learnings list` and `learnings candidates` are both empty), skip recall for the rest of this session instead of taxing every query; resume recall-first once something has been taught. ### Step 2: decision tree Read `candidates`, `playbook`, `notes`, `results[0]`, and warnings in that order: ``` if Candidates present (warnings include "candidates_present"): -> candidates are try-then-confirm, never facts. Follow each candidate's two-step next_action verbatim: run the trial command first, then run `learnings confirm ` only after the trial verified the behavior. Reject a wrong candidate with `learnings reject `. -> NEVER re-teach something recall surfaced as a candidate; confirm or reject that candidate instead of teaching a duplicate. -> candidates ride alongside playbooks and resource hits, not instead of them; continue with the branches below after acting on them. if Playbook present: -> READ Playbook.notes verbatim FIRST (workarounds + gotchas the CLI surface doesn't expose) -> replay Playbook.steps in order, substituting Playbook.slots_resolved entries for the entity slot tokens. If a step's slot is unresolved, fall back to discovery for that step only. -> the Playbook's expected_tool_calls is a budget; if you find yourself running materially more, record the divergence via `extron-pp-cli playbook amend` at end-of-session. elif Notes present (no Playbook): -> read Notes verbatim before any discovery step; they carry known gotchas for this query family even when no structured choreography exists yet. elif Found AND Results[0].EntityMatch == "exact" AND Results[0].Confidence >= 2: -> skip discovery; fetch live data for Results[*].ResourceID in parallel elif Found AND Results[0].EntityMatch == "partial": -> candidate hint, NOT a hit; read the resource title to validate before trusting elif (any row in Mismatches[] when --debug-mismatches was passed): -> treat as cold start; the stored learning is for a different entity (different canonical resolved from query_entities) else: // Found == false, no playbook, no notes -> cold start; run discovery normally; teach the answer afterward (Step 4). If the family has no playbook yet, that teach auto-synthesizes a playbook candidate from this session's journal - you do not need to record one by hand. ``` Playbook and Notes are orthogonal to the per-resource path. A recall response can carry both a Playbook AND a `Results[]` hit - use both: the Playbook tells you which choreography to run; the resource hits short-circuit specific steps. Default to skipping `mismatches`; pass `--debug-mismatches` only when investigating cold-start surprises. Candidate judgment details: `learnings confirm ` prints the candidate's full payload before materializing it - check that the printed payload matches the behavior you verified. `learnings reject ` tombstones the derivation signature so the same candidate does not resurface. The envelope carries only the few candidates worth acting on now; `extron-pp-cli learnings candidates` lists the full open set. Graceful degradation: if `learnings confirm` is an unknown command, you are driving an older binary - ignore the candidates guidance and follow the rest of the protocol. ### Step 3: always read `warnings` - `low_confidence`: row exists at `confidence<2`. Treat as a hint, not a skip-discovery hit. - `resource_not_in_store`: the local store doesn't have the resource the learning points at. The match validator couldn't classify entities — direct-fetch and re-evaluate. - `cross_alias_match` (per-result): the row was taught under a different alias and matched the live query's canonical via `entity_lookups` (e.g., a "USA" teach satisfying a "United States" recall). Trust the resource_id. - `similar_shape_different_entity:` (top-level): a structurally matching row exists but its canonical entity differs from the live query's. Treated as cold start; the warning carries the conflicting canonical as a hint, but the row is NOT promoted into Results. - `ambiguous_alias` (top-level): a single query entity resolved to multiple canonicals (e.g., "Cards" → Arizona Cardinals + St. Louis Cardinals). Surface the ambiguity from context before committing to a resource. - `candidates_present` (top-level): the envelope carries a `candidates` section. Handle it via the candidates branch in Step 2 before anything else. - `lookup_refresh_available` (top-level): an entity in the query has no lookup row yet, but synced data could provide one. Run `extron-pp-cli sync` to refresh entity lookups. Note that top-level `sync` only walks the generated `literature` endpoint and refreshes lookups — it does not build the catalog. If local reads are also coming back empty, run `extron-pp-cli catalog sync` first; that is the corpus builder. - Top-level `no_learnings_for_query_family`: the table had no rows above the Jaccard floor. Pure cold start. ### Step 4: `teach &` after finalizing your response - always Teaching is unconditional. After resolving a query the store could not answer, background-teach the final resource mapping - no call-count threshold, no judging whether it was "worth" learning. The teach is the anchor of the loop: it triggers playbook synthesis for a family without a playbook, and same-referent phrasings fold into one family so near-duplicate teaches do not fragment the store. Fire it after assembling your user-facing response but BEFORE emitting it, with a shell `&` so the call returns immediately: ```bash extron-pp-cli teach --query "" --resource-type --resource --resource # (append shell `&` to background it) ``` Silent on success. Errors only land in `teach.log` under the resolved state dir. Teach the **most specific** resource - if the user asked a broad question and you walked through parent records to find the specific answer, teach the leaf id, not the parent. The CLI uses seeded `entity_lookups` for cross-alias resolution at recall time, so a teach under one alias (e.g., "Niners") satisfies future queries under another alias (e.g., "49ers", "San Francisco") automatically. PII rule: teach the structural question with identifiers stripped - never include names, emails, phone numbers, account ids, or other personal identifiers in taught queries or notes. The CLI scans teach queries for obvious email/phone shapes and warns, but does not block; strip before teaching rather than relying on the warning. ### Step 5: playbooks - optional flags, automatic synthesis You do not need to decide whether a session "deserves" a playbook: a teach on a family without one auto-synthesizes a `playbook_candidate` from the session's journal, and the next session judges it via confirm/reject. Attach explicit playbook flags only when you already hold choreography worth recording verbatim - workarounds the CLI didn't surface (silently-dropped flags, undocumented params, pagination tricks, payload gotchas). Prefer the **integrated one-call form** - record the resource learning and the playbook in the same `teach` invocation: ```bash # Common case: record both the resource learning AND the playbook in one call. extron-pp-cli teach \ --query "" \ --resource \ --playbook-file ~/playbooks/.json \ --playbook-notes-file ~/playbooks/-notes.md # (append shell `&` to background it) # Alternate: playbook-only (no resource to record alongside). extron-pp-cli teach-playbook \ --query "" \ --playbook-file ~/playbooks/.json \ --notes-file ~/playbooks/-notes.md ``` Playbook files are JSON with `steps`, `entity_slots`, `expected_tool_calls`. Notes files are markdown carrying the gotchas verbatim. File-free callers (MCP-only agents) pass the same content inline: `--playbook-json` and `--playbook-notes` on the integrated `teach` form, `--playbook-json` and `--notes` on `teach-playbook`. On the integrated `teach` form, the playbook flags are optional - omit them entirely for a resource-only teach. On the standalone `teach-playbook` form, at least one of the playbook and notes flags must be set; both empty is rejected. Playbooks are keyed on the structural query family (entities stripped) so a recipe taught from one entity-shaped query applies to every other query of the same shape, with `slots_resolved` binding the live query's canonical at recall time. When you DO find a playbook on a future recall, treat it as ground truth: replay the steps with `slots_resolved` substitutions, skip the discovery that the choreography already documents, and read `notes` before any step. ### Step 6: `playbook amend &` when your debug response identifies a correction If your debug-protocol response identifies a concrete correction the notes or playbook should know — a workaround, an undocumented endpoint shape, a stale field name, observed schema drift, an empty-payload fallback — fire `playbook amend` BEFORE emitting your user-facing response. Same fire-and-forget posture as `teach`. ```bash extron-pp-cli playbook amend \ --query "" \ --add-note "" # (append shell `&` to background it) ``` What counts as worth amending: a behavior you OBSERVED this session that future-you would benefit from knowing. Examples worth amending: - A workaround for a CLI surface that silently drops or misorders a flag. - An undocumented endpoint shape (response wrapped in `{meta, results}`, payload nested two levels deeper than the docs claim). - Observed schema drift (a field renamed, an index that shifted between seasons, a category label that the API now returns lower-cased). What does NOT belong in notes: - The year-specific or entity-specific answer to the user's question. That's the response, not a learning. - Per-team / per-athlete / per-row data the playbook already retrieves at runtime. - Statements that paraphrase what the existing notes already say. The amend command appends to the family's existing notes with a timestamped marker (`[amend YYYY-MM-DDTHH:MMZ]: `). Multiple amends accumulate; the audit trail is visible. If no playbook exists yet for the family, amend creates a notes-only one (so cold-start corrections still land). #### PII discipline for amend notes `playbook amend` notes are designed to potentially flow upstream as shared knowledge in future versions of the Printing Press. Keep them clean of user-identifying content so the upstream-contribution path stays open without retroactive scrubbing: - **Do NOT embed** paths to user filesystems, personal API keys or tokens, user email addresses, user GitHub handles, or specific query histories tied to a single user. - **Acceptable**: endpoint shapes, undocumented field names, API gotchas, observed schema drift, workarounds for CLI surfaces, generalizable pagination or retry tactics. If a correction is only meaningful with user-specific context, it belongs in a personal note, not in the playbook amend. ### Measuring the loop `extron-pp-cli learnings stats` reports recall hit rate, teach-to-reuse, playbook resolution rate, and candidate confirm/reject counts from the local `learn_events` table. Rates are null until they have a denominator; everything stays on this machine. Use it to check whether the loop is earning its keep for this CLI. ### Disabling learning - `--no-learn` on a single command short-circuits both `recall` and the `teach` write path. Use for deterministic agent flows or tests that must not be affected by accumulated learnings. - `EXTRON_NO_LEARN=true` in the environment globally disables the pipeline. ## Agent Feedback When you (or the agent) notice something off about this CLI, record it: ``` extron-pp-cli feedback "the --since flag is inclusive but docs say exclusive" extron-pp-cli feedback --stdin < notes.txt extron-pp-cli feedback list --json --limit 10 ``` Entries are stored locally as `feedback.jsonl` under the resolved data dir. They are never POSTed unless `EXTRON_FEEDBACK_ENDPOINT` is set AND either `--send` is passed or `EXTRON_FEEDBACK_AUTO_SEND=true`. Default behavior is local-only. Write what *surprised* you, not a bug report. Short, specific, one line: that is the part that compounds. ## Output Delivery Every command accepts `--deliver `. The output goes to the named sink in addition to (or instead of) stdout, so agents can route command results without hand-piping. Three sinks are supported: | Sink | Effect | |------|--------| | `stdout` | Default; write to stdout only | | `file:` | Atomically write output to `` (tmp + rename) | | `webhook:` | POST the output body to the URL (`application/json` or `application/x-ndjson` when `--compact`) | Unknown schemes are refused with a structured error naming the supported set. Webhook failures return non-zero and log the URL + HTTP status on stderr. ## Named Profiles A profile is a saved set of flag values, reused across invocations. Use it when a scheduled or recurring agent reuses the same saved flags while providing different input each run. ``` extron-pp-cli profile save briefing --json extron-pp-cli --profile briefing literature extron-pp-cli profile list --json extron-pp-cli profile show briefing extron-pp-cli profile delete briefing --yes ``` Explicit flags always win over profile values; profile values win over defaults. `agent-context` lists all available profiles under `available_profiles` so introspecting agents discover them at runtime. ## Exit Codes | Code | Meaning | |------|---------| | 0 | Success | | 2 | Usage error (wrong arguments) | | 3 | Resource not found | | 5 | API error (upstream issue) | | 7 | Rate limited (wait and retry) | | 10 | Config error | ## Argument Parsing Parse `$ARGUMENTS`: 1. **Empty, `help`, or `--help`** → show `extron-pp-cli --help` output 2. **Starts with `install`** → ends with `mcp` → MCP installation; otherwise → see Prerequisites above 3. **Anything else** → Direct Use (execute as CLI command with `--agent`) ## MCP Server Installation 1. Install the MCP server: ```bash go install github.com/mvanhorn/printing-press-library/library/devices/extron/cmd/extron-pp-mcp@latest ``` 2. Register with Claude Code: ```bash claude mcp add extron-pp-mcp -- extron-pp-mcp ``` 3. Verify: `claude mcp list` ## Direct Use 1. Check if installed: `which extron-pp-cli` If not found, offer to install (see Prerequisites at the top of this skill). 2. Match the user query to the best command from the Unique Capabilities and Command Reference above. 3. Execute with the `--agent` flag: ```bash extron-pp-cli [subcommand] [args] --agent ``` 4. If ambiguous, drill into subcommand help: `extron-pp-cli --help`.