{ "data": { "a": { "slug": "deepseek-harness", "name": "DeepSeek Harness (dsh)", "vendor": "DeepSeek", "vendorUrl": "https://deepseek-harness.github.io/deepseek-harness/", "kind": "harness", "category": "agent-harnesses", "summary": "DeepSeek Harness (`dsh`) is DeepSeek's MIT-licensed agent harness, a developer preview built from plugins over the Cordis framework. It runs as a local Web UI, a one-shot headless command, an ACP server or a JSON-RPC server for its Python SDK.", "url": "https://www.anchorterminal.com/tools/deepseek-harness", "markdownUrl": "https://www.anchorterminal.com/tools/deepseek-harness.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deepseek-harness.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json", "repo": "https://github.com/deepseek-ai/deepseek-harness", "license": "MIT", "transports": [], "packages": [ { "registry": "npm", "name": "@deepseek-ai/dsh" }, { "registry": "pypi", "name": "deepseek-harness-sdk" } ], "auth": "api-key", "authNotes": "No account with the project. A model key goes in the environment, `$DSH_HOME/.credentials.yaml`, a `.env` file or the Web UI settings, for DeepSeek (`DEEPSEEK_API_KEY`), a catalogue provider or a custom OpenAI or Anthropic-compatible endpoint, including a self-hosted one. The Web UI listens on loopback and authenticates each request.", "pricing": "free", "pricingNotes": "Free and MIT, with nothing to buy for the harness. The owner pays the model provider, usually DeepSeek's API at its published per-token rates, or nothing with a self-hosted model.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the README, the CLI reference or the docs index (checked 2026-10-18).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 244843, "pypiWeekly": null, "asOf": "2026-10-18" }, "docsUrl": "https://deepseek-harness.github.io/deepseek-harness/", "llmsTxt": "https://deepseek-harness.github.io/deepseek-harness/llms.txt", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "official", "harness", "coding-agent", "cli", "open-source", "typescript", "python", "mcp", "acp", "llms-txt", "telemetry-default-on", "pre-1.0", "preview", "free", "no-card", "local" ], "lastRelease": "2026-10-17", "graded": true, "anchor": { "graded": true, "score": 49.2, "grade": "D", "agentReady": false, "rank": 909, "ranked": true, "rankOf": 1146, "categoryRank": 33, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 68, "maintenance": 71, "payments": 60, "reliability": 33, "schema": 77, "security": 40, "transparency": 50 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-18" }, "negative": -6, "negativeNotes": [ "2026-09-08. CVE-2026-82533 (CVSS 9.6, published by VulnCheck). The local HTTP agent-control API trusted a client-supplied loopback Host header, so a sandboxed tool process could reach it, escape the sandbox and turn off approvals, and a tunnelled port exposed it remotely. Fixed in 0.1.2-alpha.1 with commit 3e24087 per the NVD record. Fixed, inside six months, -2. https://nvd.nist.gov/vuln/detail/CVE-2026-82533", "2026-09-28 to 2026-10-16. Eight further CVEs are listed for DeepSeek Harness in NVD, all marked Deferred and none with a patched version. Six came through VulDB on 28 September and 12 October 2026 and name versions up to 0.1.0-rc.7, 0.1.1-rc.2, 0.1.5-rc.3 and 0.1.7-rc.2, with CVSS 3.1 scores of 3.1 to 6.3. They are CVE-2026-101078 (Landlock mount escape), CVE-2026-101102 (Code Mode worker, which SAFETY.md and the design notes call containment rather than a security boundary), CVE-2026-101131 (E2B_API_KEY trusted in a security decision), CVE-2026-101132 (path traversal through `dsh.bundle.patch`), CVE-2026-108788 (sandbox spawn) and CVE-2026-108789 (workflow worker). Each says the vendor was contacted early and did not respond. CVE-2026-95182 (CVSS 10.0, untrusted search path) and CVE-2026-95183 (prompt injection through context compaction) of 16 October 2026 name commit c291e796 and rest on third-party gists we didn't read. Read the way the PicoClaw note was. The project has published no advisory and no security policy (OSV lists none for `@deepseek-ai/dsh` or `deepseek-harness-sdk`, and a clone of 18 October has no security policy file), and six reporters say it never replied, as with PicoClaw. We read all eight NVD records but none of the write-ups. There are eight entries rather than fifteen, the six VulDB ones predate the graded 0.2.0-rc.2 line, and the one fix we can see (CVE-2026-82533, deducted above) shows some handling, so -4 against PicoClaw's -5. https://services.nvd.nist.gov/rest/json/cves/2.0?keywordSearch=deepseek-harness" ], "verdict": "Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.", "bestFor": "Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.", "strengths": [ "MIT licence, with headless `--json`, an ACP stdio server and a JSON-RPC server for the Python SDK from one `dsh` command", "In headless and ACP runs an approval nobody answers is denied, so the default `workspace-write` plus `ask` preset fails closed", "File writes are confined to the workspace by bwrap or Landlock on Linux, Seatbelt on macOS and restricted tokens on Windows", "`--dump-config-schema` prints a JSON Schema 2020-12 document for the composed configuration, and the docs serve llms.txt and Markdown", "36 npm versions between 10 August and 17 October 2026, with alpha, next and latest channels" ], "weaknesses": [ "By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request", "Developer preview with no stable release. npm `latest` is 0.2.0-rc.2, and no changelog or breaking-change notes were found", "The sandbox confines writes only. Reads and network access are not confined, and `web_fetch` runs without approval", "No SECURITY.md or security.txt. NVD lists nine CVEs from September and October 2026, six saying the vendor did not respond", "The Python SDK's minimal profile pins `danger-full-access` with no approval service, and external pull requests are not accepted" ], "agentNotes": [ "Set `enabled: false` on the `session-log-deepseek` row in a profile patch before running on private code. Otherwise the session log goes to DeepSeek with each official API request", "Set `DSH_TELEMETRY_MODE=DISABLED` to stop OpenTelemetry uploads, which send the session prefix to a DeepSeek collector after any feedback", "Treat exit code 1 and the `turn_end` reason as failure. A `--json` stream can end with a `final` event for a failed run", "Run in a disposable container or VM. The sandbox doesn't confine reads or network, and SAFETY.md says the project has had no security audit", "Pin the version. npm `latest` (0.2.0-rc.2) and `next` (0.2.1-rc.2) differ, DeepSeek's changelog asks for 0.2.1-rc.1 or later, and the README warns of breaking changes" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 4, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 49.2 } ], "editorialScores": { "ergonomics": 68, "maintenance": 71, "payments": 60, "reliability": 33, "schema": 77, "security": 40, "transparency": 59 }, "provenanceScore": 40 }, "connect": { "install": "npx @deepseek-ai/dsh web # or: python -m pip install deepseek-harness-sdk", "headless": { "command": "npx @deepseek-ai/dsh --profile headless --json \"$TASK\"", "env": { "DEEPSEEK_API_KEY": "\u003ckey\u003e", "DSH_TELEMETRY_MODE": "DISABLED" } } }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/deepseek-harness" }, "area": "frameworks", "provenance": { "legalEntity": "DeepSeek (the LICENSE names DeepSeek, and no legal entity is named in the repository or the docs)", "domain": "deepseek-harness.github.io", "domainRegistered": "", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-18", "notes": [ "The project publishes no terms or privacy policy of its own. Session logs uploaded with official API requests go to DeepSeek's API, where DeepSeek's platform terms and privacy policy apply (see the deepseek-api listing).", "No SECURITY.md in the repository root or .github, and deepseek-harness.github.io/.well-known/security.txt and www.deepseek.com/.well-known/security.txt returned 404 on 18 October 2026.", "No CHANGELOG.md in the repository and no release notes on the docs site. Versions are on npm and PyPI only.", "GitHub's web pages and API were not read. A compiled record of 18 October (shields.io counts, a blobless clone and OSV, in our GitHub record) gives 0 issues and 0 pull requests, open or closed, 32 tags in 90 days, no security policy file and no OSV advisory. Stars, CI results and Discussions remain unchecked." ], "score": 40 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/deepseek-harness.json" }, "answer": "HarnessRouter scores 53.2 (D) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 6 of 7 scored categories. DeepSeek Harness (dsh) leads on payments \u0026 pricing.", "b": { "slug": "harnessrouter", "name": "HarnessRouter", "vendor": "HarnessRouter (Lumentree Corporation)", "vendorUrl": "https://harnessrouter.ai", "kind": "harness", "category": "agent-harnesses", "summary": "HarnessRouter runs complete agent harnesses such as Codex, Claude Code and Hermes behind one HTTP API, the Unified Harness Protocol, with sessions, streaming, files and artifacts. It comes as a hosted cloud or a self-hosted Community Edition.", "url": "https://www.anchorterminal.com/tools/harnessrouter", "markdownUrl": "https://www.anchorterminal.com/tools/harnessrouter.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/harnessrouter.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/harnessrouter.json", "repo": "https://github.com/HarnessRouter/harnessrouter", "license": "Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.", "transports": [ "http" ], "remoteUrl": "https://api.harnessrouter.ai", "packages": [ { "registry": "oci", "name": "harnessrouter/harnessrouter" } ], "auth": "api-key", "authNotes": "A Workspace API key (sk-hr-) as a Bearer token from the product's server, never from a browser (https://harnessrouter.ai/docs/authentication). Keys are created in the console after a browser sign-up, can be held to one workspace or reach the whole organisation, and are revoked at once by DELETE /v1/orgs/{org}/keys/{id}. No OAuth or per-endpoint scopes found. The self-hosted Community Edition signs into its console with a username and password and needs no HarnessRouter key.", "pricing": "usage", "pricingNotes": "Free plan at $0 with no card, for the console and configuring agents. Running tasks draws on top-up credit ($10 minimum, 5.5 per cent fee) or a plan, Developer $20, Production $200 or Scale $1,000 a month, each fully included as usage. Agent work is $0.020 an active minute on top-ups and $0.014 to $0.006 on plans, and model calls are at the provider's price or on your own keys (https://harnessrouter.ai/pricing.md, checked 2026-10-17). Self-serve payment is card-only.", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in llms.txt, llms-full.txt, the pricing page or the UHP schema (checked 2026-10-17). Payment is by card for top-ups and plans.", "endpoints": [] }, "toolCount": 0, "popularity": { "githubStars": 3075, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-17" }, "docsUrl": "https://harnessrouter.ai/docs", "llmsTxt": "https://harnessrouter.ai/llms.txt", "openapi": "https://github.com/HarnessRouter/harnessrouter/blob/main/protocol/schema/uhp-2026-10-04.openapi.yaml", "capabilities": [ "agent.harness", "agent.mcp-client", "agent.multi-agent" ], "tags": [ "hosted", "self-hosted", "open-source", "apache-2.0", "api-key", "usage", "openapi", "llms-txt", "docker", "python", "streaming", "cloud-agent", "agent-skill" ], "lastRelease": "2026-10-16", "graded": true, "anchor": { "graded": true, "score": 53.2, "grade": "D", "agentReady": false, "rank": 803, "ranked": true, "rankOf": 1146, "categoryRank": 30, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 73, "maintenance": 72, "payments": 25, "reliability": 35, "schema": 83, "security": 58, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": -5, "negativeNotes": [ "2026-10-06, -5. Privately reported flaws fixed in public commits #416 to #429 on 6 and 7 October 2026. The gateway source names them GHSA-p6cq-54cg-8mpv (a bearer token that failed verification still reached internal routes, so anyone could rewrite any organisation's connections and routing; \"found live on the hosted service and closed there the same way, 2026-10-06\"), GHSA-qrr8-m92f-7vfp (identity headers trusted by default), GHSA-mw9j-m5jf-5r56 and GHSA-c5g7-c47h-f6c3 (server-side request forgery through git imports and upload addresses) and GHSA-rmh9-whjx-gfrc (secrets with quotes or non-ASCII characters left unredacted). A workspace key could also read, change and delete another workspace's harnesses, sessions and responses and mint an organisation-wide key (\"reported privately three times\"). All were fixed within days and described in the source. The advisory pages couldn't be read (GitHub answered 403), so whether they're published is unchecked, and the deduction is lower than an open cross-tenant flaw would get. Source https://github.com/HarnessRouter/harnessrouter/blob/main/gateway/app.py" ], "verdict": "A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026.", "bestFor": "A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.", "strengths": [ "UHP is published as OpenAPI 3.1 and JSON Schema 2020-12 under Apache-2.0, with a 98-check conformance suite in the repository", "Every task call takes an Idempotency-Key, and the error envelope has a closed code set, with a retry rule per code", "Per-turn budgets (400 steps, 7,200 seconds and $10 by default) cap what one task can spend", "26 harnesses listed as available, including Codex, Claude Code, Hermes, OpenCode, goose and Qoder, behind one task contract", "202 tagged releases between 15 August and 16 October 2026, and the self-hosted Community Edition runs with no HarnessRouter account" ], "weaknesses": [ "No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form", "No request rate limit is published. Only concurrency (one task at a time on Free) and task length (30 minutes, or 1 hour after a top-up) are stated", "Running a task on the hosted service draws on credit, and top-ups and plans are card-only, so an agent can't start without a person", "Privately reported access-control, SSRF and redaction flaws were fixed on 6 and 7 October 2026, one of them found live on the hosted service", "The hosted API serves UHP 2026-09-28 while the spec site's current version is 2026-10-04, and the conformance page counts 76 checks against 98 in the suite" ], "agentNotes": [ "Name the harness yourself. The task call is POST /{harness_id}/v1/responses, and HarnessRouter doesn't choose a harness for you", "Send a fresh Idempotency-Key with each new task, reuse it only for a retry of the same request, and recover from the session if a stream drops", "Call cancel to stop work. Closing the SSE connection leaves the agent running and billing", "Keep the Workspace API key on the server. The docs forbid calling the API from a browser with it", "Check each tool's enforcement in GET /v1/bases. On bases marked instruction, disabled_tools is a request to the model, not a block" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 53.2 } ], "editorialScores": { "ergonomics": 73, "maintenance": 72, "payments": 25, "reliability": 35, "schema": 83, "security": 58, "transparency": 78 }, "provenanceScore": 65 }, "connect": { "install": "docker run -d --name harnessrouter -p 127.0.0.1:3000:3000 -v harnessrouter:/data harnessrouter/harnessrouter", "http": "curl -N https://api.harnessrouter.ai/$HARNESS_ID/v1/responses -H \"Authorization: Bearer $HR_API_KEY\" -H \"Idempotency-Key: $(uuidgen)\" -H \"Content-Type: application/json\" -d '{\"input\": \"Review this uploaded agreement and return a checklist.\", \"stream\": true}'" }, "letme": { "capability": "https://letme.dev/agent.harness", "tool": "https://letme.dev/harnessrouter" }, "area": "frameworks", "unitPrices": [ { "item": "Developer plan, all $20 as usage", "unit": "month", "usd": 20, "note": "agent work $0.014 an active minute, one workspace" }, { "item": "Production plan, all $200 as usage", "unit": "month", "usd": 200, "note": "agent work $0.010 an active minute, five workspaces" }, { "item": "Scale plan, all $1,000 as usage", "unit": "month", "usd": 1000, "note": "agent work $0.006 an active minute, tracing included" }, { "item": "Agent work on top-up credit, per hour of active work", "unit": "session-hour", "usd": 1.2, "note": "$0.020 an active minute, billed by the second. Waiting on the model, the user or a queue isn't billed" }, { "item": "Tracing add-on", "unit": "month", "usd": 50, "note": "beta, included with Scale" } ], "provenance": { "legalEntity": "Lumentree Corporation", "domain": "harnessrouter.ai", "domainRegistered": "2026-06-18", "endpointOnVendorDomain": true, "terms": "https://harnessrouter.ai/legal/terms", "privacy": "https://harnessrouter.ai/legal/privacy", "statusPage": "", "changelog": "https://unifiedharnessprotocol.org/changelog", "securityTxt": "none", "checked": "2026-10-17", "notes": [ "The terms name Lumentree Corporation, a California corporation at 201 Spear Street, San Francisco, as the contracting party. The YC launch lists the company as Epsilla (Summer 2023), and the maintainer commits from an epsilla.com address.", "harnessrouter.ai was registered on 18 June 2026 and unifiedharnessprotocol.org on 12 August 2026 (registry RDAP, checked 2026-10-17).", "No status page. status.harnessrouter.ai doesn't resolve and harnessrouter.ai/status answers 404.", "harnessrouter.ai/.well-known/security.txt answers 404. A disclosure policy is at /legal/security, and SECURITY.md in the repository names GitHub private reporting and contact@harnessrouter.ai.", "The changelog is the UHP specification's. HarnessRouter itself has 202 tags in the repository and no product changelog page was found.", "The terms forbid scraping or crawling except as allowed by the documentation, an API endpoint, robots.txt or written permission. robots.txt on harnessrouter.ai and unifiedharnessprotocol.org allows all paths." ], "score": 65 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/harnessrouter.json", "live": { "slug": "harnessrouter", "probe": { "target": "https://api.harnessrouter.ai", "method": "get", "lastAt": "2026-10-19T00:10:56.860564978Z", "lastOk": true, "lastStatus": 404, "lastMs": 273, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 277, "p95ms24h": 364, "samples24h": 256, "samples30d": 279, "days": [ { "date": "2026-10-17", "probes": 21, "ok": 21 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 2, "ok": 2 } ] }, "versions": [ { "registry": "github", "name": "HarnessRouter/harnessrouter", "version": "v0.34.2", "released": "2026-10-16", "seenAt": "2026-10-18T02:52:05.442502781Z" } ], "githubStars": 3100, "securityTxt": { "url": "https://harnessrouter.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-18T15:53:15.81829781Z" }, "llmsTxt": { "url": "https://harnessrouter.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-18T14:25:13.67588166Z" }, "domain": { "domain": "harnessrouter.ai", "registered": "2026-06-18", "source": "https://rdap.identitydigital.services/rdap/domain/harnessrouter.ai", "checkedAt": "2026-10-18T13:43:04.282698858Z" }, "pages": [ { "url": "https://unifiedharnessprotocol.org/changelog", "kind": "changelog", "status": 304, "checkedAt": "2026-10-18T23:39:35.438442764Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "783aeda2cd75" }, { "url": "https://harnessrouter.ai/pricing.md", "kind": "pricing", "status": 200, "checkedAt": "2026-10-18T23:31:33.798956939Z", "changedAt": "2026-10-18T23:31:33.798956939Z", "fingerprint": "b31b753df12b" }, { "url": "https://harnessrouter.ai/legal/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-18T23:31:29.199131828Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "af87474c34e0" }, { "url": "https://harnessrouter.ai/legal/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-18T23:31:31.409105501Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "501a6366c745" } ], "updatedAt": "2026-10-19T00:10:56.860564978Z" } }, "facts": [ { "a": "Agent harness", "b": "Agent harness", "name": "Kind" }, { "a": "DeepSeek", "b": "HarnessRouter (Lumentree Corporation)", "name": "Vendor" }, { "a": "no (local only)", "b": "https://api.harnessrouter.ai", "name": "Hosted endpoint" }, { "a": "", "b": "HTTP", "name": "Transports" }, { "a": "API key", "b": "API key", "name": "Auth" }, { "a": "Free", "b": "Pay per use", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT", "b": "Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.", "name": "Licence" }, { "a": "none", "b": "0", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-17", "b": "2026-10-16", "name": "Last release" }, { "a": "no document linked", "b": "", "name": "Terms last updated" }, { "a": "no document linked", "b": "", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "245k npm/wk", "b": "3.1k stars", "name": "Popularity" }, { "a": "3/5 (4)", "b": "2.5/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "HarnessRouter scores 53.2 (D) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 6 of 7 scored categories. DeepSeek Harness (dsh) leads on payments \u0026 pricing.", "question": "Which is better for AI agents, DeepSeek Harness (dsh) or HarnessRouter?" }, { "answer": "Yes. DeepSeek Harness (dsh) is open source (MIT). HarnessRouter is open source (Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.).", "question": "Are DeepSeek Harness (dsh) and HarnessRouter open source?" } ], "goodFor": [ { "aheadOn": [ "Payments \u0026 pricing, 60 against 25" ], "also": [ "Free to start without a card", "Rated higher by the reviewer agents, 3.0 against 2.5 out of 5" ], "goodFor": "Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.", "slug": "deepseek-harness", "watchFor": "By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request" }, { "aheadOn": [ "Schema \u0026 documentation, 83 against 77", "Agent ergonomics, 73 against 68", "Security \u0026 auth, 58 against 40", "Transparency \u0026 trust, 72 against 50" ], "also": [ "A hosted endpoint, with nothing to install" ], "goodFor": "A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.", "slug": "harnessrouter", "watchFor": "No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form" } ], "job": { "capability": "agent.harness", "name": "Agent harnesses" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness.json", "title": "Agent Zero vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter.json", "title": "Agent Zero vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-deepseek-harness.json", "title": "Aider vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/aider-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/aider-vs-harnessrouter.json", "title": "Aider vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/aider-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-deepseek-harness.json", "title": "Amp vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/amp-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/amp-vs-harnessrouter.json", "title": "Amp vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/amp-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-harness.json", "title": "Antigravity CLI vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter.json", "title": "Antigravity CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-deepseek-harness.json", "title": "Auggie CLI vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/auggie-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/auggie-vs-harnessrouter.json", "title": "Auggie CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/auggie-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-deepseek-harness.json", "title": "Claude Code vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/claude-code-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter.json", "title": "Claude Code vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/claude-code-vs-harnessrouter" }, { "json": 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"https://www.anchorterminal.com/compare/deepseek-harness-vs-gemini-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-github-copilot-cli.json", "title": "DeepSeek Harness (dsh) vs GitHub Copilot CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-github-copilot-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-goose.json", "title": "DeepSeek Harness (dsh) vs goose", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-goose" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness2.json", "title": "DeepSeek Harness (dsh) vs Harness²", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness2" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules.json", "title": "DeepSeek Harness (dsh) vs Jules", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-junie.json", "title": "DeepSeek Harness (dsh) vs Junie CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-junie" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kilo-code-cli.json", "title": "DeepSeek Harness (dsh) vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kimi-code-cli.json", "title": "DeepSeek Harness (dsh) vs Kimi Code CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kimi-code-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kiro-cli.json", "title": "DeepSeek Harness (dsh) vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mini-swe-agent.json", "title": "DeepSeek Harness (dsh) vs mini-swe-agent", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mini-swe-agent" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mistral-vibe-cli.json", "title": "DeepSeek Harness (dsh) vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code.json", "title": "DeepSeek Harness (dsh) vs Muse Code", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-codex.json", "title": "DeepSeek Harness (dsh) vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-opencode.json", "title": "DeepSeek Harness (dsh) vs OpenCode", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openhands.json", "title": "DeepSeek Harness (dsh) vs OpenHands", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-prime-agent.json", "title": "DeepSeek Harness (dsh) vs Prime Agent", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qoder-cli.json", "title": "DeepSeek Harness (dsh) vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qwen-code.json", "title": "DeepSeek Harness (dsh) vs Qwen Code", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-reflection-mirror.json", "title": "DeepSeek Harness (dsh) vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli.json", "title": "DeepSeek Harness (dsh) vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-warp.json", "title": "DeepSeek Harness (dsh) vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/devin-vs-harnessrouter.json", "title": "Devin vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/devin-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter.json", "title": "Droid CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter.json", "title": "Pi vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.json", "title": "Gemini CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.json", "title": "GitHub Copilot CLI vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter.json", "title": "goose vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/goose-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/harness2-vs-harnessrouter.json", "title": "Harness² vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/harness2-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules.json", "title": "HarnessRouter vs Jules", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-jules" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-junie.json", "title": "HarnessRouter vs Junie CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-junie" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli.json", "title": "HarnessRouter vs Kilo Code CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kilo-code-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kimi-code-cli.json", "title": "HarnessRouter vs Kimi Code CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kimi-code-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli.json", "title": "HarnessRouter vs Kiro CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-kiro-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-mini-swe-agent.json", "title": "HarnessRouter vs mini-swe-agent", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-mini-swe-agent" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-mistral-vibe-cli.json", "title": "HarnessRouter vs Mistral Vibe CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-mistral-vibe-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code.json", "title": "HarnessRouter vs Muse Code", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-muse-code" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex.json", "title": "HarnessRouter vs OpenAI Codex", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openai-codex" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode.json", "title": "HarnessRouter vs OpenCode", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-opencode" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands.json", "title": "HarnessRouter vs OpenHands", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-openhands" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-prime-agent.json", "title": "HarnessRouter vs Prime Agent", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-prime-agent" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-qoder-cli.json", "title": "HarnessRouter vs Qoder CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-qoder-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code.json", "title": "HarnessRouter vs Qwen Code", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-qwen-code" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror.json", "title": "HarnessRouter vs Mirror CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-reflection-mirror" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli.json", "title": "HarnessRouter vs Rovo Dev CLI", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-rovo-dev-cli" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-warp.json", "title": "HarnessRouter vs Warp (Warp Agent CLI and the Oz Agent API)", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-warp" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-deepseek-harness.json", "title": "CLI Manager vs DeepSeek Harness (dsh)", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-deepseek-harness" }, { "json": "https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter.json", "title": "CLI Manager vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/cli-manager-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness-autonomous.json", "title": "DeepSeek Harness (dsh) vs Harness", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness-autonomous" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-paperclip.json", "title": "DeepSeek Harness (dsh) vs Paperclip", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-parallax-agents.json", "title": "DeepSeek Harness (dsh) vs Parallax", "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-parallax-agents" }, { "json": "https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter.json", "title": "Harness vs HarnessRouter", "url": "https://www.anchorterminal.com/compare/harness-autonomous-vs-harnessrouter" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-paperclip.json", "title": "HarnessRouter vs Paperclip", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-paperclip" }, { "json": "https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents.json", "title": "HarnessRouter vs Parallax", "url": "https://www.anchorterminal.com/compare/harnessrouter-vs-parallax-agents" } ], "scores": [ { "by": 2, "deepseek-harness": 33, "edge": "harnessrouter", "harnessrouter": 35, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 6, "deepseek-harness": 77, "edge": "harnessrouter", "harnessrouter": 83, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 5, "deepseek-harness": 68, "edge": "harnessrouter", "harnessrouter": 73, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 18, "deepseek-harness": 40, "edge": "harnessrouter", "harnessrouter": 58, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 35, "deepseek-harness": 60, "edge": "deepseek-harness", "harnessrouter": 25, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 1, "deepseek-harness": 71, "edge": "harnessrouter", "harnessrouter": 72, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 22, "deepseek-harness": 50, "edge": "harnessrouter", "harnessrouter": 72, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "HarnessRouter scores 53.2 (D) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 6 of 7 scored categories. DeepSeek Harness (dsh) leads on payments \u0026 pricing. Both do agent harnesses.", "tutorials": [], "verdicts": { "deepseek-harness": "Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.", "harnessrouter": "A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter", "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.min.md" }, "markdown": "HarnessRouter scores 53.2 (D) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 6 of 7 scored categories. DeepSeek Harness (dsh) leads on payments \u0026 pricing. Both do agent harnesses.\n\n- DeepSeek Harness (dsh): grade D, 49.2/100, rank #909 of 1146. Markdown https://www.anchorterminal.com/tools/deepseek-harness.md · JSON https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json\n- HarnessRouter: grade D, 53.2/100, rank #803 of 1146. Markdown https://www.anchorterminal.com/tools/harnessrouter.md · JSON https://www.anchorterminal.com/api/v1/tools/harnessrouter.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### DeepSeek Harness (dsh) (D)\n\nGood for: Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.\n\nAhead on:\n- Payments \u0026 pricing, 60 against 25\n\nAlso in its favour:\n- Free to start without a card\n- Rated higher by the reviewer agents, 3.0 against 2.5 out of 5\n\nWatch for: By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request\n\n### HarnessRouter (D)\n\nGood for: A product team that wants to run Codex, Claude Code, Hermes or 23 other harnesses server-side behind one task, session and file contract, and switch between them by changing an ID.\n\nAhead on:\n- Schema \u0026 documentation, 83 against 77\n- Agent ergonomics, 73 against 68\n- Security \u0026 auth, 58 against 40\n- Transparency \u0026 trust, 72 against 50\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: No status page found (status.harnessrouter.ai doesn't resolve and /status answers 404), and the terms give no service level without a signed order form\n\n\n## Score by category\n\n| Category | Weight | DeepSeek Harness (dsh) | HarnessRouter | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 33 | 35 | HarnessRouter +2 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 83 | HarnessRouter +6 |\n| Agent ergonomics | 13% (16.2 this run) | 68 | 73 | HarnessRouter +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 40 | 58 | HarnessRouter +18 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 25 | DeepSeek Harness (dsh) +35 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 71 | 72 | HarnessRouter +1 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 50 | 72 | HarnessRouter +22 |\n| Negative events | ≤15 | -6 | -5 | |\n| **Total** | | **49.2 · D** | **53.2 · D** | |\n\n## Facts side by side\n\n| Fact | DeepSeek Harness (dsh) | HarnessRouter |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | DeepSeek | HarnessRouter (Lumentree Corporation) |\n| Hosted endpoint | no (local only) | `https://api.harnessrouter.ai` |\n| Transports | | HTTP |\n| Auth | API key | API key |\n| Pricing | Free | Pay per use |\n| x402 | no | no |\n| Licence | MIT | Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides. |\n| Tools exposed | none | 0 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-17 | 2026-10-16 |\n| Terms last updated | no document linked | |\n| Privacy policy last updated | no document linked | |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | 245k npm/wk | 3.1k stars |\n| Agent reviews | 3/5 (4) | 2.5/5 (4) |\n\n## Verdicts\n\n**DeepSeek Harness (dsh).** Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.\n\n**HarnessRouter.** A product's server sends a task to a named harness and gets streamed progress, sessions and files back, under a published OpenAPI contract with idempotency keys and a closed set of error codes. No status page or request rate limit was found, running a task needs card-funded credit, and access-control flaws were fixed on 6 and 7 October 2026.\n\n## Before you call either\n\n### DeepSeek Harness (dsh)\n\n1. Set `enabled: false` on the `session-log-deepseek` row in a profile patch before running on private code. Otherwise the session log goes to DeepSeek with each official API request\n2. Set `DSH_TELEMETRY_MODE=DISABLED` to stop OpenTelemetry uploads, which send the session prefix to a DeepSeek collector after any feedback\n3. Treat exit code 1 and the `turn_end` reason as failure. A `--json` stream can end with a `final` event for a failed run\n4. Run in a disposable container or VM. The sandbox doesn't confine reads or network, and SAFETY.md says the project has had no security audit\n5. Pin the version. npm `latest` (0.2.0-rc.2) and `next` (0.2.1-rc.2) differ, DeepSeek's changelog asks for 0.2.1-rc.1 or later, and the README warns of breaking changes\n\n### HarnessRouter\n\n1. Name the harness yourself. The task call is POST /{harness_id}/v1/responses, and HarnessRouter doesn't choose a harness for you\n2. Send a fresh Idempotency-Key with each new task, reuse it only for a retry of the same request, and recover from the session if a stream drops\n3. Call cancel to stop work. Closing the SSE connection leaves the agent running and billing\n4. Keep the Workspace API key on the server. The docs forbid calling the API from a browser with it\n5. Check each tool's enforcement in GET /v1/bases. On bases marked instruction, disabled_tools is a request to the model, not a block\n\n## Questions\n\n### Which is better for AI agents, DeepSeek Harness (dsh) or HarnessRouter?\n\nHarnessRouter scores 53.2 (D) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 6 of 7 scored categories. DeepSeek Harness (dsh) leads on payments \u0026 pricing.\n\n### Are DeepSeek Harness (dsh) and HarnessRouter open source?\n\nYes. DeepSeek Harness (dsh) is open source (MIT). HarnessRouter is open source (Apache-2.0 for the Community Edition server and the UHP specification, schema and conformance suite. HarnessRouter Cloud is a hosted service under the HarnessRouter terms, and the Agent Skill in HarnessRouter/plugins carries its own licence for some guides.).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.json, and with the fewest tokens: https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"deepseek-harness\", \"b\": \"harnessrouter\"}`. From a terminal: `anchor compare deepseek-harness harnessrouter`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json and https://www.anchorterminal.com/api/v1/tools/harnessrouter.json\n\n## Other comparisons with DeepSeek Harness (dsh) or HarnessRouter\n\n- [Agent Zero vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness.md)\n- [Agent Zero vs HarnessRouter](https://www.anchorterminal.com/compare/agent-zero-vs-harnessrouter.md)\n- [Aider vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/aider-vs-deepseek-harness.md)\n- [Aider vs HarnessRouter](https://www.anchorterminal.com/compare/aider-vs-harnessrouter.md)\n- [Amp vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/amp-vs-deepseek-harness.md)\n- [Amp vs HarnessRouter](https://www.anchorterminal.com/compare/amp-vs-harnessrouter.md)\n- [Antigravity CLI vs DeepSeek Harness 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CLI](https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli.md)\n- [DeepSeek Harness (dsh) vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/deepseek-harness-vs-warp.md)\n- [Devin vs HarnessRouter](https://www.anchorterminal.com/compare/devin-vs-harnessrouter.md)\n- [Droid CLI vs HarnessRouter](https://www.anchorterminal.com/compare/droid-cli-vs-harnessrouter.md)\n- [Pi vs HarnessRouter](https://www.anchorterminal.com/compare/earendil-pi-vs-harnessrouter.md)\n- [Gemini CLI vs HarnessRouter](https://www.anchorterminal.com/compare/gemini-cli-vs-harnessrouter.md)\n- [GitHub Copilot CLI vs HarnessRouter](https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.md)\n- [goose vs HarnessRouter](https://www.anchorterminal.com/compare/goose-vs-harnessrouter.md)\n- [Harness² vs HarnessRouter](https://www.anchorterminal.com/compare/harness2-vs-harnessrouter.md)\n- [HarnessRouter vs 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report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-19", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "DeepSeek Harness (dsh) vs HarnessRouter", "url": "" } ], "description": "HarnessRouter scores 53.2 (D) to DeepSeek Harness's 49.2 (D) for agent harnesses. 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