---
name: pp-github-contents
description: "Download any GitHub folder without cloning — plan it first, verify it after, re-sync only what changed. Trigger phrases: `download a folder from github`, `download this github directory`, `grab files from a repo without cloning`, `check if my local copy matches the repo`, `how big is that github folder`, `use github-contents`, `run github-contents`."
author: "Rick van de Laar"
license: "Apache-2.0"
argument-hint: "<command> [args] | install cli|mcp"
allowed-tools: "Read Bash"
metadata:
  openclaw:
    requires:
      bins:
        - github-contents-pp-cli
    install:
      - kind: go
        bins: [github-contents-pp-cli]
        module: github.com/mvanhorn/printing-press-library/library/developer-tools/github-contents/cmd/github-contents-pp-cli
---

# GitHub Contents — Printing Press CLI

## Prerequisites: Install the CLI

This skill drives the `github-contents-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 `$HOME/.local/bin` on macOS/Linux and `%LOCALAPPDATA%\Programs\PrintingPress\bin` on Windows:
   ```bash
   npx -y @mvanhorn/printing-press-library install github-contents --cli-only
   ```
2. Verify: `github-contents-pp-cli --version`
3. Ensure the reported install directory is on `$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 1.26.6 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/developer-tools/github-contents/cmd/github-contents-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.

Addresses owner/repo/path#ref like degit, but streams big files past the 1 MB contents-API limit via the raw CDN, preserves folder structure, and gives every command --json for agents. The plan/verify/sync-dir loop — preview cost before downloading, prove local files match remote by git blob SHA, then fetch only the diff — exists in no other GitHub download tool.

## When to Use This CLI

Reach for this CLI when a task needs files out of a GitHub repo without a full clone: downloading a subdirectory (docs, datasets, templates, book collections) with structure preserved, previewing what a download costs, verifying a local copy still matches upstream, or keeping a mirror current with minimal bandwidth. It works unauthenticated on public repos and uses at most a couple of API requests per operation.

## Anti-triggers

Do not use this CLI for:
- Cloning a repo with git history — use git clone or gh repo clone
- Working with issues, pull requests, or actions — use the gh CLI
- Writing, committing, or pushing files to a repo — this CLI is read-only
- Downloading Git LFS binaries — v1 detects and warns but does not resolve LFS pointers
- Searching code across GitHub — use gh search or the code-search API

## Unique Capabilities

These capabilities aren't available in any other tool for this API.

### Plan-verify-sync loop
- **`plan`** — Preview exactly what a fetch would download — file list, sizes, total bytes, API-request cost vs your remaining quota, and LFS-pointer warnings — before spending any bandwidth.

  _Run this before fetch to know a download is 122 files / 1.9 GB and costs only 2 API requests, instead of finding out mid-download._

  ```bash
  github-contents-pp-cli plan mjwoon/AI-readings/books --agent
  ```
- **`verify`** — Check whether a previously downloaded directory still matches the remote at a ref — match/changed/missing/extra per file — without re-downloading anything.

  _Proves 'this workspace matches ref X' cheaply — the post-download assertion CI and agents otherwise can't make without re-fetching._

  ```bash
  github-contents-pp-cli verify ./books mjwoon/AI-readings/books --agent
  ```
- **`sync-dir`** — Update an existing downloaded directory in place, fetching only files that changed upstream or are missing locally.

  _The weekly-mirror command: keeps a local collection current for the price of one API call plus only the changed bytes._

  ```bash
  github-contents-pp-cli sync-dir ./books mjwoon/AI-readings/books --agent
  ```

### Remote inspection
- **`stats`** — Size and file-count breakdown of any repo path by subfolder and extension, plus the largest files, from a single API request.

  _Answers 'how big is this directory and what is in it' in one call before committing to a download._

  ```bash
  github-contents-pp-cli stats mjwoon/AI-readings/books --agent --select by_folder
  ```
- **`search`** — Search previously fetched repo listings from the local store — find files by name or pattern with zero API calls.

  _Lets agents answer 'which repo path had file X' from data already on disk instead of re-walking the API._

  ```bash
  github-contents-pp-cli search "transformers" --limit 20
  ```

## Command Reference

**blobs** — Raw git blobs — fetch file content by SHA (works for files up to 100 MB)

- `github-contents-pp-cli blobs <owner> <repo> <file_sha>` — Get a blob (base64-encoded content) by its git SHA

**contents** — List directories and read files via the repository contents API

- `github-contents-pp-cli contents <owner> <repo> <path>` — Get a directory listing (JSON array) or file metadata+content (JSON object, base64, files up to 1 MB).

**rate-limit** — API quota status — check headroom before and during bulk downloads

- `github-contents-pp-cli rate-limit` — Show remaining API quota (5000/h with a token, 60/h without)

**releases** — Repository releases and their downloadable assets

- `github-contents-pp-cli releases latest` — Get the latest published release
- `github-contents-pp-cli releases list` — List releases with their assets
- `github-contents-pp-cli releases download <owner> <repo>` — Download release assets (latest, or --tag) matching --pattern into --out; --list-only previews matches without downloading

**repos** — Repository metadata (default branch, visibility, size)

- `github-contents-pp-cli repos branches` — List branches of a repository
- `github-contents-pp-cli repos commits` — List commits, optionally filtered to a path (newest first)
- `github-contents-pp-cli repos get` — Get repository metadata including the default branch

**tarball** — Full-repository snapshot as a .tar.gz

- `github-contents-pp-cli tarball <owner/repo[#ref]>` — Download the whole repo at a ref as a tarball (use fetch for a subdirectory)

**trees** — Git trees — one-request recursive listings of an entire repo or subtree

- `github-contents-pp-cli trees <owner> <repo> <tree_sha>` — Get a git tree. With --recursive, returns every file under it in one request (check the truncated flag on huge repos)


### Finding the right command

When you know what you want to do but not which command does it, ask the CLI directly:

```bash
github-contents-pp-cli which "<capability in your own words>"
```

`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.

## Recipes

### Download a folder, keep the structure

```bash
github-contents-pp-cli fetch mjwoon/AI-readings/books --out ./books
```

Recursive download of one subdirectory; subfolders and filenames (including spaces) arrive intact.

### Preview cost before a big download

```bash
github-contents-pp-cli plan mjwoon/AI-readings/books --agent
```

Machine-readable plan: files, total_bytes, api_cost, lfs_pointers — decide before spending bandwidth.

### Only PDFs, nothing else

```bash
github-contents-pp-cli fetch mjwoon/AI-readings/books --include "*.pdf" --out ./pdfs
```

Glob filters restrict the download without changing the preserved structure.

### Narrow a huge tree listing for an agent

```bash
github-contents-pp-cli trees mjwoon AI-readings main --recursive --agent --select tree.path,tree.size
```

The recursive tree of a repo is thousands of entries; --select keeps only the two fields an agent needs.

### Keep a mirror current

```bash
github-contents-pp-cli sync-dir ./books mjwoon/AI-readings/books --agent
```

One API call to diff by blob SHA, then only changed or new files are streamed down.

## Auth Setup

Auth is optional: public repos work unauthenticated (60 req/h); a token raises the limit to 5000 req/h and enables private repos. The persistence path is the environment variable:

```bash
export GITHUB_TOKEN="your-token-here"   # or GH_TOKEN
```

`github-contents-pp-cli auth setup` prints these generic env-var instructions (this CLI has no configured token-creation URL, so `--launch` has nothing to open). Verify with `github-contents-pp-cli auth status` or `github-contents-pp-cli doctor`.

## 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
  github-contents-pp-cli blobs mock-value mock-value mock-value --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": <data>
}
```

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 <dir>` for one invocation, or set `GITHUB_CONTENTS_HOME=<dir>` to relocate all four path kinds under one root.
- Use per-kind env vars only when a specific kind must diverge: `GITHUB_CONTENTS_CONFIG_DIR`, `GITHUB_CONTENTS_DATA_DIR`, `GITHUB_CONTENTS_STATE_DIR`, `GITHUB_CONTENTS_CACHE_DIR`.
- Resolution order is per-kind env var, `--home`, `GITHUB_CONTENTS_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 `github-contents-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": {
      "github-contents": {
        "command": "github-contents-pp-mcp",
        "env": {
          "GITHUB_CONTENTS_HOME": "/srv/github-contents"
        }
      }
    }
  }
  ```

Fleet precedence: an inherited per-kind env var overrides an explicit `--home` for that kind. Use `GITHUB_CONTENTS_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 `GITHUB_CONTENTS_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
github-contents-pp-cli recall "<user's question>" --agent
```

The response envelope:

```json
{
  "query": "...",
  "normalized": "<normalized form>",
  "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": ["<trial command>", "github-contents-pp-cli learnings confirm 12"] }
  ],
  "playbook": {
    "query_family": "...",
    "playbook": {
      "steps": [ { "cmd": "<command with {slot} substitution>", "purpose": "..." } ],
      "entity_slots": ["$ENTITY"],
      "expected_tool_calls": 3
    },
    "slots_resolved": { "$ENTITY": { "token": "<live token>", "canonical": "<canonical>" } },
    "notes": "<workarounds + gotchas for this query family>"
  },
  "notes": "<duplicate surface for non-playbook callers>"
}
```

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 <id>` only after the trial verified the behavior.
       Reject a wrong candidate with `learnings reject <id>`.
    -> 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 `github-contents-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 <id>` prints the candidate's full payload before materializing it - check that the printed payload matches the behavior you verified. `learnings reject <id>` tombstones the derivation signature so the same candidate does not resurface. The envelope carries only the few candidates worth acting on now; `github-contents-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:<canonical>` (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 locally stored data could provide one. Re-run `plan`, `fetch`, or `sync-dir` against the target to refresh the local store (this CLI has no standalone `sync` command).
- 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
github-contents-pp-cli teach --query "<user's question>" --resource-type <type> --resource <