{
  "$schema_doc": "https://gtmstacker.com/registry/schema/entry.schema.json",
  "stability": "emerging",
  "generator": "agentic-media-registry",
  "generated_at": "2026-09-11T00:00:00Z",
  "id": "com.gtmstacker.registry/tool/spotify-shunt",
  "type": "tool",
  "slug": "spotify-shunt",
  "canonical_url": "https://gtmstacker.com/registry/tool/spotify-shunt/",
  "title": "Portal AI Plugins (Spotify shunt)",
  "description": "Open-source Claude Code plugin set (Apache-2.0) from Spotify's Portal platform: the 'shunt' plugin routes I/O-heavy agent work — bulk file reads and boilerplate generation — to cheaper worker models via PreToolUse hooks, cutting Claude token usage by ~90% in Spotify's benchmarks on a Java monorepo.",
  "category": "mcp-agents",
  "tags": [
    "mcp-agents",
    "agent-ops",
    "claude-code",
    "token-efficiency",
    "cost-optimization",
    "plugins"
  ],
  "status": "active",
  "revision": 1,
  "content_hash": "74378a0a9880d07505e4c437b16a99b8d454dc598a21350e44ac5f50fe9e6dd6",
  "date_published": "2026-09-11T00:00:00Z",
  "date_modified": "2026-09-11T00:00:00Z",
  "source": {
    "name": "github · spotify/portal-ai-plugins",
    "url": "https://github.com/spotify/portal-ai-plugins"
  },
  "license": "Apache-2.0",
  "one_liner": "Spotify's shunt plugin routes an agent's bulk reads and boilerplate writes to cheaper models via hooks, cutting Claude Code token usage ~90% in its benchmarks.",
  "open_source": "yes",
  "self_hostable": "yes",
  "pricing_model": "free",
  "who_its_for": "Teams running coding agents at scale who want to stop paying frontier-model rates for file I/O and boilerplate — the plugin pattern ports to any agent stack with hooks.",
  "aliases": [
    "shunt",
    "portal-ai-plugins",
    "Portal AI Plugins"
  ],
  "alternatives": [
    "teamai-cli"
  ],
  "secondary_categories": [
    "ai-infrastructure"
  ],
  "last_verified": "2026-09-11",
  "evidence": {
    "claim_type": "mixed",
    "source_id": "https://github.com/spotify/portal-ai-plugins",
    "note": "Apache-2.0 + 1.2k★ WebFetch-verified 2026-09-11; the ~90% figure is Spotify's own benchmark (engineering.atspotify.com, Sep 2026)."
  },
  "caveats": "The shunt plugin is Claude Code-only today, and the example modes assume Spotify's AiKA mode runtime — outside Spotify you wire the hooks to your own cheap-model worker. The ~90% cut is vendor-reported on one Java monorepo.",
  "lead": "Open-source Claude Code plugin set (Apache-2.0) from Spotify's Portal platform: the 'shunt' plugin routes I/O-heavy agent work — bulk file reads and boilerplate generation — to cheaper worker models via PreToolUse hooks, cutting Claude token usage by ~90% in Spotify's benchmarks on a Java monorepo.",
  "chunks": [
    {
      "index": 0,
      "heading_path": [],
      "est_tokens": 75,
      "text": "Open-source Claude Code plugin set (Apache-2.0) from Spotify's Portal platform: the 'shunt' plugin routes I/O-heavy agent work — bulk file reads and boilerplate generation — to cheaper worker models via PreToolUse hooks, cutting Claude token usage by ~90% in Spotify's benchmarks on a Java monorepo."
    },
    {
      "index": 1,
      "heading_path": [
        null,
        "Provenance"
      ],
      "est_tokens": 210,
      "text": "Open-source Claude Code plugin set (Apache-2.0) from Spotify's Portal platform: the 'shunt' plugin routes I/O-heavy agent work — bulk file reads and boilerplate generation — to cheaper worker models via PreToolUse hooks, cutting Claude token usage by ~90% in Spotify's benchmarks on a Java monorepo.\n\n- Apache-2.0 independently WebFetch-verified 2026-09-11 (1.2k★, official Spotify org). The ~90% token-reduction figure is Spotify's own benchmark, published on Spotify Engineering (\"Portal by Spotify cut my Claude Code token usage by 90%\", Sep 2026) — vendor-reported, one Java monorepo.\n- Surfaced twice in the 2026-09-11 pass: the viral-posts brief (macro-tier X post) and press coverage. Curated from the GTM Stacker signal registry (2026-09-11 pass: daily pull + viral-posts brief); license independently WebFetch-verified 2026-09-11."
    },
    {
      "index": 2,
      "heading_path": [
        null,
        "Why it matters for a GTM stack"
      ],
      "est_tokens": 176,
      "text": "Spotify cut my Claude Code token usage by 90%\", Sep 2026) — vendor-reported, one Java monorepo. - Surfaced twice in the 2026-09-11 pass: the viral-posts brief (macro-tier X post) and press coverage. Curated from the GTM Stacker signal registry (2026-09-11 pass: daily pull + viral-posts brief); license independently WebFetch-verified 2026-09-11.\n\nMost coding-agent spend is not reasoning, it is I/O. Routing bulk reads and predictable codegen to a cheap worker model is the same build-vs-buy math every lean team runs on SaaS seats — applied to model tokens. The hook pattern (intercept expensive tool calls, delegate to a cheaper executor) is portable to any agent doing GTM ops work, not just coding."
    }
  ],
  "alternates": {
    "markdown": "https://gtmstacker.com/registry/tool/spotify-shunt/index.md",
    "html": "https://gtmstacker.com/registry/tool/spotify-shunt/",
    "json": "https://gtmstacker.com/registry/tool/spotify-shunt/index.json",
    "server_json": "https://gtmstacker.com/registry/tool/spotify-shunt/server.json"
  },
  "jsonld": {
    "@context": "https://schema.org",
    "@graph": [
      {
        "@type": "WebSite",
        "@id": "https://gtmstacker.com/#website",
        "url": "https://gtmstacker.com/",
        "name": "GTM Stacker Agent Registry",
        "description": "A daily-updated, agent-native registry of open-source tool discoveries, tool updates, and curated news for the go-to-market / RevOps engineering niche. Machine-readable first: agents can discover, parse, page, and delta-sync it without scraping HTML.",
        "inLanguage": "en",
        "publisher": {
          "@id": "https://gtmstacker.com/#organization"
        }
      },
      {
        "@type": "Organization",
        "@id": "https://gtmstacker.com/#organization",
        "name": "GTM Stacker",
        "url": "https://gtmstacker.com",
        "description": "The growth-systems practice of Theo Popov: AI-native enrichment, outbound, content engines and internal tooling for startups and venture programs. Its agent-native media property, the GTM Stacker Agent Registry, maintains a daily-updated catalog of open-source go-to-market and RevOps tools that both people and AI engines can discover, compare, and cite.",
        "foundingDate": "2024-08",
        "knowsAbout": [
          "go-to-market engineering",
          "RevOps",
          "sales automation",
          "marketing operations",
          "open-source software",
          "AI agents"
        ],
        "founder": {
          "@type": "Person",
          "@id": "https://gtmstacker.com/#founder",
          "name": "Theo Popov",
          "jobTitle": "Growth Operations & GTM Systems",
          "url": "https://gtmstacker.com/about/",
          "sameAs": [
            "https://www.linkedin.com/in/theo-popov",
            "https://x.com/Theo_Popov",
            "https://github.com/theopopov"
          ],
          "worksFor": {
            "@id": "https://gtmstacker.com/#organization"
          }
        },
        "sameAs": [
          "https://www.linkedin.com/company/gtmstacker"
        ],
        "mainEntityOfPage": "https://gtmstacker.com/registry/about/"
      },
      {
        "@type": "SoftwareApplication",
        "@id": "https://gtmstacker.com/registry/tool/spotify-shunt/#software",
        "name": "Portal AI Plugins (Spotify shunt)",
        "identifier": "io.github.spotify/portal-ai-plugins",
        "description": "Open-source Claude Code plugin set (Apache-2.0) from Spotify's Portal platform: the 'shunt' plugin routes I/O-heavy agent work — bulk file reads and boilerplate generation — to cheaper worker models via PreToolUse hooks, cutting Claude token usage by ~90% in Spotify's benchmarks on a Java monorepo.",
        "applicationCategory": "DeveloperApplication",
        "url": "https://gtmstacker.com/registry/tool/spotify-shunt/",
        "datePublished": "2026-09-11T00:00:00Z",
        "dateModified": "2026-09-11T00:00:00Z",
        "isPartOf": {
          "@id": "https://gtmstacker.com/#website"
        },
        "license": "https://spdx.org/licenses/Apache-2.0.html",
        "codeRepository": "https://github.com/spotify/portal-ai-plugins",
        "keywords": "mcp-agents, ai-infrastructure, agent-ops, claude-code, token-efficiency, cost-optimization, plugins",
        "author": {
          "@type": "Organization",
          "name": "spotify",
          "url": "https://github.com/spotify",
          "sameAs": [
            "https://github.com/spotify/portal-ai-plugins"
          ]
        },
        "offers": {
          "@type": "Offer",
          "price": 0,
          "priceCurrency": "USD"
        },
        "isSimilarTo": [
          {
            "@type": "SoftwareApplication",
            "name": "TeamAI CLI",
            "url": "https://gtmstacker.com/registry/tool/teamai-cli/",
            "applicationCategory": "DeveloperApplication",
            "offers": {
              "@type": "Offer",
              "price": 0,
              "priceCurrency": "USD"
            }
          }
        ]
      },
      {
        "@type": "BreadcrumbList",
        "@id": "https://gtmstacker.com/registry/tool/spotify-shunt/#breadcrumb",
        "itemListElement": [
          {
            "@type": "ListItem",
            "position": 1,
            "name": "GTM Stacker Registry",
            "item": "https://gtmstacker.com/registry/"
          },
          {
            "@type": "ListItem",
            "position": 2,
            "name": "MCP Agents",
            "item": "https://gtmstacker.com/registry/category/mcp-agents/"
          },
          {
            "@type": "ListItem",
            "position": 3,
            "name": "Portal AI Plugins (Spotify shunt)",
            "item": "https://gtmstacker.com/registry/tool/spotify-shunt/"
          }
        ]
      }
    ]
  },
  "tool": {
    "name": "io.github.spotify/portal-ai-plugins",
    "repository": {
      "url": "https://github.com/spotify/portal-ai-plugins",
      "source": "github"
    }
  }
}