Github Repo Mining

GitHub Repository Mining at Scale

Use when you need to discover 50–200+ repos on a topic, collect their metadata (stars, descriptions), and organize into structured output like an awesome-list.

Core Approach

Combine agent-browser (for GitHub search page scraping) with execute_code (for looping, deduplication, and batch processing). Do NOT manually call pages one by one in conversation — use execute_code loops.

Step 1 — Define Search Query Set

GitHub search is noisy. Use 10–30 varied queries to maximize coverage:

queries = [
    "primary+keyword",                    # Main term, pages 1-8
    "topic:your-topic",                   # GitHub topic tag
    "keyword+tool", "keyword+framework",  # Compound terms
    "keyword+ui", "keyword+config",       # Feature-specific
    "keyword+hooks", "keyword+mcp",       # Ecosystem-specific
    "keyword+tutorial", "keyword+guide",  # Educational
    "keyword+template", "keyword+boilerplate",
    "SomeProperNoun",                     # Related brands/projects
]

Step 2 — Scrape with execute_code Loop

from hermes_tools import terminal
import re, json

def parse_page(raw_text):
    """Extract repos from agent-browser accessibility tree snapshot."""
    repos = []
    lines = raw_text.split('\n')
    i = 0
    while i < len(lines):
        line = lines[i]
        # Level-3 headings are repo names in GitHub search results
        m = re.search(r'heading "([^/"\s]+/[^"\s]+)".*\[level=3', line)
        if m:
            repo = m.group(1).strip()
            if '/' in repo:
                stars, desc = "", ""
                for j in range(i+1, min(i+30, len(lines))):
                    # Stars: look for "Xk" or plain number pattern
                    sm = re.search(r'StaticText "(\d+\.?\d*[kK]?)"', lines[j])
                    if sm and not stars:
                        stars = sm.group(1)
                    # Description: any long StaticText not matching noise
                    dm = re.search(r'StaticText "([^"]{20,})"', lines[j])
                    if dm and not desc:
                        c = dm.group(1)
                        if not any(x in c for x in ['Updated', ' ago', 'Press', 'Sponsor', 'Read', 'open source', 'every piece']):
                            desc = c
                repos.append((repo, stars, desc))
        i += 1
    return repos

def safe_fetch(url):
    # Include proxy env vars if needed (common in CN/restricted environments)
    r = terminal(f'agent-browser open "{url}" 2>&1 | head -1 && agent-browser snapshot 2>&1')
    return r.get("output", "")

all_repos = {}

# Paginate main keyword (up to 8 pages = ~80 repos)
for p in range(1, 9):
    url = f"https://github.com/search?q=your+keyword&type=repositories&s=stars&o=desc&p={p}"
    raw = safe_fetch(url)
    for repo, stars, desc in parse_page(raw):
        if repo not in all_repos:
            all_repos[repo] = {"stars": stars, "desc": desc}

# Additional queries (first page only, sorted by stars)
for q in queries:
    url = f"https://github.com/search?q={q}&type=repositories&s=stars&o=desc"
    raw = safe_fetch(url)
    for repo, stars, desc in parse_page(raw):
        if repo not in all_repos:
            all_repos[repo] = {"stars": stars, "desc": desc}

print(f"Total unique: {len(all_repos)}")

# Save — execute_code sessions don't share state between calls
with open('/tmp/repos.json', 'w') as f:
    json.dump(all_repos, f, ensure_ascii=False, indent=2)

Critical: Save to /tmp/repos.json after each execute_code block — state is NOT shared between calls.

Step 3 — Fetch Accurate Descriptions (Chunked)

execute_code has a 50 tool-call cap. Process repos in chunks of 50:

from hermes_tools import terminal
import re, json

with open('/tmp/repos.json') as f:
    all_repos = json.load(f)

def get_repo_desc(repo):
    """GitHub page title format: 'GitHub - owner/repo: description · GitHub'"""
    r = terminal(f'agent-browser open "https://github.com/{repo}" 2>&1 | head -1')
    title = r.get("output", "")
    # Title separator may be · or - before "GitHub"
    m = re.search(r'GitHub - [^:]+: (.+?)(?:\s[·•]\s| - )GitHub', title)
    if m:
        return m.group(1).strip()
    # Fallback: grab everything after colon
    m2 = re.search(r'GitHub - [^:]+: (.+?)$', title.strip())
    return m2.group(1).strip()[:120] if m2 else ""

repos_list = list(all_repos.items())

# Process chunk N (call this block multiple times with different slices)
for repo, info in repos_list[0:50]:    # Change slice each run: [50:100], [100:150]...
    new_desc = get_repo_desc(repo)
    if new_desc:
        all_repos[repo]["desc"] = new_desc

with open('/tmp/repos.json', 'w') as f:
    json.dump(all_repos, f, ensure_ascii=False, indent=2)
print(f"Done chunk. Total: {len(all_repos)}")

Step 3b — Description Fallback Strategy (3-tier)

When get_repo_desc() returns empty for some repos, use this cascade:

1. Snapshot fallback — fetch the repo page and scan accessibility tree for long StaticText:

def get_desc_via_snapshot(repo):
    r = terminal(f'agent-browser open "https://github.com/{repo}" 2>&1 | head -1 && agent-browser snapshot 2>&1 | head -80')
    for line in r.get("output","").split('\n'):
        m = re.search(r'StaticText "([^"]{25,120})"', line)
        if m:
            c = m.group(1)
            if not any(x in c for x in ['Star', 'Fork', 'Watch', 'Code', 'Issues', 'Pull', 'Actions']):
                return c
    return ""

2. GitHub REST API — free, no auth needed for public repos:

def get_desc_via_api(repo):
    r = terminal(f'curl -s "https://api.github.com/repos/{repo}" | python3 -c "import sys,json; d=json.load(sys.stdin); print(d.get('description','') or '')"')
    return r.get("output","").strip()

3. Manual fallback dict — for repos that resist all scraping:

manual_descs = {"owner/repo": "Hand-written one-liner description"}
for repo, desc in manual_descs.items():
    if repo in all_repos and not all_repos[repo]['desc']:
        all_repos[repo]['desc'] = desc

Step 4 — Classify Repos

Classify by repo name first, description second. Descriptions are noisy and sometimes missing; repo names are reliable.

def classify(repo, desc):
    repo_l = repo.lower()
    desc_l = (desc or '').lower()
    # Check repo name FIRST — more reliable than description
    if 'anthropics/' in repo_l: return "Official & Core"
    if 'awesome' in repo_l: return "Awesome Lists"
    if 'mcp' in repo_l: return "MCP Tools"
    if any(x in repo_l for x in ['skill', 'plugin']): return "Skills & Plugins"
    if any(x in repo_l for x in ['router', 'proxy', 'relay']): return "Routing & Proxy"
    if any(x in repo_l for x in ['mem', 'memory', 'context']): return "Memory & Context"
    # Fall through to description keywords
    if 'memory' in desc_l: return "Memory & Context"
    if 'mcp' in desc_l: return "MCP Tools"
    return "Other"

Also filter self-referential noise in descriptions (e.g. owner/repo-name literally appearing as the description when GitHub shows card header):

noise_patterns = [f'{repo.split("/")[0]}/', 'owner/repo-prefix']
if any(p in desc for p in noise_patterns):
    desc = ""  # treat as missing

Step 5 — Output Format (Awesome List)

Default: 3-column table, NO rank/sequence column. Users typically do NOT want sequence numbers — they clutter the view. Only add a rank column if explicitly requested.

Writing style for Chinese-primary READMEs: When the user says "按照之前的写作风格" or "no # headings, no sequence numbers", use this pattern:

• Top-level title: plain text on first line (no # prefix), e.g. learn-crypto
• Section headers: bold text with emoji, e.g. **⛓️ 公链与底层协议** — NEVER use #, ##, ###
• No ordered lists (1. 2. 3.) anywhere in the doc; use - bullets for TOC
• Badge row, then --- dividers between sections
• Footer uses **贡献** and **许可证** bold headers, not ##

| Repository | Stars | Description |
|-----------|------:|-------------|
| [owner/repo](https://github.com/owner/repo) | 13.5k ⭐ | One-line description |

Removing a rank column from an existing README (if a user asks to clean it up):

text = text.replace('| # | Repository | Stars | Description |', '| Repository | Stars | Description |')
text = text.replace('|:---:|-----------|------:|-------------|', '|-----------|------:|-------------|')
# Remove rank number from data rows: "| 3 | [repo](...) |" -> "| [repo](...) |"
text = re.sub(r'\|\s*\d+\s*\|\s*(\[)', r'| \1', text)

Incrementally expanding (101-200, etc.) — insert new rows into existing category sections without rebuilding:

# Find the category header line, then find the last data row in that section,
# insert new rows immediately after it
for cat, new_repos_list in new_classified.items():
    header_idx = next((i for i, l in enumerate(lines) if l.strip() == CAT_HEADER_MAP[cat]), None)
    if header_idx is None: continue
    last_row_idx = None
    for i in range(header_idx + 1, len(lines)):
        if lines[i].startswith('## ') and i != header_idx: break
        if lines[i].startswith('| [') and 'github.com' in lines[i]:
            last_row_idx = i
    if last_row_idx is None: continue
    new_rows = [f"| [{repo}](https://github.com/{repo}) | {stars} | {desc} |" for repo, info in new_repos_list]
    lines = lines[:last_row_idx+1] + new_rows + lines[last_row_idx+1:]

Save the second batch to a separate /tmp/new_repos_101_200.json to avoid contaminating the first batch. Deduplicate against the original pool when collecting.

Include a global rank column (optional) so readers can compare cross-category popularity:

all_sorted = sorted(all_repos.items(), key=lambda x: parse_stars(x[1]['stars']), reverse=True)
rank_map = {repo: i+1 for i, (repo, _) in enumerate(all_sorted)}

Table format with rank:

| Rank | Repository | Stars | Description |
|:----:|-----------|------:|-------------|
| #1 | [owner/repo](https://github.com/owner/repo) | 13.5k ⭐ | One-line description |

For bilingual (EN + CN) awesome lists:

• Create README.md (English, primary) and README_CN.md (Chinese)
• Both files start with language toggle badges linking to each other:

  <a href="README.md">🇺🇸 English</a> | <a href="README_CN.md">🇨🇳 中文</a>
  

• Use same category structure in both files
• Chinese descriptions should be natural translations, not verbatim machine translation

Pitfalls

• execute_code state loss: Always save to /tmp/*.json — variables vanish between calls
• 50 tool-call cap: Chunk description fetching into 50-repo batches (one execute_code call each)
• Query overlap: Use deduplication dict (if repo not in all_repos) — same repo appears across many queries
• Noise in descriptions: Filter out GitHub UI text ("Updated X ago", "Sponsor", "Press /", etc.). Also filter self-referential noise like owner/repo-name appearing as the description
• Stars parsing: GitHub shows "13.5k" not "13500" — keep as string for display, parse only if sorting
• Page 9+ for 101-200: Main keyword pagination works up to pages 9–17 (after page 17 returns 0 results). Combine with compound queries like keyword+hooks, keyword+config+yaml, keyword+subagent to reach 100+ new repos. Always exclude repos already in the first-batch dict
• Page 9+ returns empty after 17: GitHub search caps at ~170 results for main keyword. Quality compound queries add 30–50 more unique repos
• README badge/stat updates when expanding: Update Repos-100 → Repos-200 badge, recount per-category overview table, update description text (e.g. "These 100 repositories…" → "These 200 repositories…")
• Rebuild pattern: If you hit the 50-call cap mid-loop, rebuild from saved JSON in the next call rather than resuming mid-array
• Title regex variation: GitHub title separator can be · (middle dot U+00B7) or - — use (?:\s[·•]\s| - ) to match both
• Compound keyword searches: Queries like keyword+feature (e.g. claude+code+hooks) yield many unique repos not found by the main keyword — always add feature/domain-specific compound queries
• Proxy in restricted networks: Prepend export https_proxy=http://YOUR_PROXY_HOST:PORT http_proxy=http://YOUR_PROXY_HOST:PORT; to terminal commands when in China or behind a firewall
• GitHub API rate-limiting with no token: Unauthenticated requests to api.github.com/repos/{owner}/{repo} get rate-limited to 60/hour. When processing 100+ repos in two execute_code blocks, the second block will return all zeros. Mitigate by: (1) chunking smaller (30 repos per block), (2) adding sleep 1 between calls, or (3) hardcoding known star counts for famous repos rather than fetching them all
• write_file uses absolute paths from agent perspective: On macOS, write_file("/root/Desktop/...") writes nowhere useful. Always resolve the real home directory first with terminal("echo $HOME") and use that path (e.g. /Users/username/Desktop/...). The execute_code sandbox assumes Linux paths — use terminal("mkdir -p ~/Desktop/project") to create dirs, then write with the real path
• Description cross-contamination in search results: When scraping GitHub search pages, repo descriptions sometimes bleed into adjacent repos' parsed data (e.g. dogecoin/dogecoin getting monero's description). Always verify descriptions for the top 20 repos manually or via a known_desc dict for well-known projects
• Stars display string vs sort integer: Keep both stars (display string like "13.5k") and stars_int (integer for sorting) in the data dict. The search page scraper gives display strings; the API gives integers. When API is rate-limited, maintain a known_stars dict for major projects (bitcoin ~83k, ethereum/go-ethereum ~48k, etc.) to ensure correct sort order
• Repo count inflation from niche queries: Broad queries like monero+wallet, zcash+privacy, lightning+network add many low-star repos (under 500 stars) that dilute the top-100 list. If the goal is "top 100 by stars globally", prioritize the main keyword's first 8–10 pages over many variant queries, then supplement with topic searches only

Realistic Scale Expectations

Diminishing returns kick in after ~150 repos for niche topics.