TrueForge is an agent runtime that runs the execution loop connecting language models, tools, skills, sandboxes, approvals, context handling, and session state. Developers use it through a chat interface, HTTP API, TypeScript SDK, or embeddable UI to build and operate AI agents.
Borrowing it
Nothing to install: this file belongs to truefoundry/trueforge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/truefoundry/trueforge/main/AGENTS.mdgit clone --depth 1 https://github.com/truefoundry/trueforgeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/truefoundry/trueforge/agents-md)<a href="https://agentmods.dev/instructions/truefoundry/trueforge/agents-md"><img src="https://agentmods.dev/badge/instructions/truefoundry/trueforge/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/truefoundry/trueforge/agents-md"><img src="https://agentmods.dev/badge/instructions/truefoundry/trueforge/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01451 | $0.01451 |
| Opus 5.5 | $0.00580 | $0.00580 |
| Sonnet 5.5 | $0.00290 | $0.00290 |
| Haiku 4.5 | $0.00145 | $0.00145 |
Grade A, and why
trueforge AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 33 lines — stays where its author put it; the contents beside it link to each section on GitHub.
- Workspace tasks MUST use
package.jsonscripts; add a script when a missing workflow is repeatable like the existing commands, not ad hoc commands. - CI package path filters, matrix package ids, and root scripts
test:*in.github/workflows/ci.ymland rootpackage.jsonMUST stay synchronized when a workspace package is added, renamed, or moved; thestorefilter sync rule lives inpackages/trueforge-core/src/agent-session/store/AGENTS.md. - Release wiring MUST keep dist-free host development,
pnpm smoke, packed CJS/ESM consumers of@truefoundry/trueforge-core, and ESM consumers of@truefoundry/trueforge-sdkworking without changes. Workspace loaders opt into SDK/coresrc/via thetrueforge-devexport condition (never"development"); the SDK'strueforge-devtypes MUST stay on generated.d.mtsfromsdk:types(source is notexactOptionalPropertyTypes-clean). - PRs that change published-package code (
packages/assistant-ui-runtime,packages/trueforge-core,packages/trueforge,packages/trueforge-ui,packages/trueforge-sdk) orpackages/frontend(ships inside@truefoundry/trueforge) MUST include a new.changeset/*.mdfile (pnpm changeset). Docs, CI/workflows, charts, and docker-compose changes do not. SDK regeneration already adds@truefoundry/trueforge-sdkviapnpm changeset:sdk-regen. - Changeset bumps MUST be
patchonly. Minor (and major) version bumps are controlled by an external release process; PR changesets MUST NOT useminorormajor. - Shared Postgres/Redis settings in
docker-compose.ymlanddocker-compose.dev.yml(image versions, health checks,env_file) MUST stay synchronized; intentional differences (app services, data paths, projectname, host ports, in-networkPOSTGRES_HOST/REDIS_URL) MUST stay explicit.packages/trueforge/.envis the host-dev + secrets source;docker-compose.ymlmay read it but MUST override container connectivity so host-dev localhost values are not used inside the smoke-test stack. - Changes to types or schemas MUST keep
packages/trueforge-core,packages/frontend,packages/trueforge, andpatchessynchronized; they MUST NOT update only one affected layer. - TypeScript code MUST NOT use assertion escapes such as
as T,as unknown as T, non-null!, oras neverto silence type errors; implementations MUST use sound contracts, guards, or corrected types. - When catching an error and throwing another, the new error MUST set
{ cause: caught }so the original failure is preserved for logs and debugging. - Every type, schema, helper, and contract MUST have one canonical owner; code MUST NOT introduce duplicate definitions or forwarding shims that hide ownership.
- AgentUIServer / server-port types (
AgentChatServer,AgentBuilderServer, catalog ports, session/turn DTOs, stream events) MUST be defined only inpackages/assistant-ui-runtime/src/server/types.ts/events.ts.@truefoundry/trueforge-uiMUST re-export them fromsrc/server/types.ts(pass-through aliases only) and MUST NOT add hand-written parallel definitions of those ports/DTOs. - Runtime types backed by Zod schemas MUST be derived with named
z.infer<typeof Schema>aliases; code MUST NOT duplicate those schemas as hand-written interfaces or indirect utility-type chains. - Modules MUST use static
importandimport type; they MUST NOT userequire(),require.resolve(), or lint suppressions to bypass import checks. - After editing ESLint-covered files, run
pnpm exec eslint <changed-files> --max-warnings=0and fix findings in the same change. Do not dropasyncsolely to silence@typescript-eslint/require-awaitwhen the body can throw: keep Promise rejections viaPromise.resolve()/Promise.reject()/Promise.resolve().then(...). - A change that makes code unused MUST remove that dead code in the same change; it MUST NOT leave stale exports, files, documentation, duplicates, or “just in case” shims.
- Every nested
AGENTS.mdMUST have a siblingCLAUDE.mdcontaining only@AGENTS.md, so Cursor and Claude Code load the same scoped rules. - OpenAPI specs under
.github/fern/openapi/openapi.jsonanddocs/openapi.jsonare autogenerated in CI and MUST NOT be edited manually (both copies MUST stay identical) - Code under
packages/trueforge-sdkandpython/trueforge_sdkis autogenerated in CI and MUST NOT be edited manually - Tests MUST live under a package-top-level
testortestsdirectory that mirrors thesrclayout; they MUST NOT be inlined undersrc. - Functions with more than one parameter of the same type MUST take a single options object (e.g.
f({ a, b }: { a: string; b: string })); they MUST NOT use multiple positional parameters of that repeated type (e.g.f(a: string, b: string)). - Zod unions MUST use
z.discriminatedUnionwhenever every member carries a shared literal discriminator field;z.unionis only permitted when no such common discriminator exists. - HTTP/OpenAPI wire shapes (path params, query params, request/response JSON fields) and database identifiers (table/column names, persisted jsonb document keys) MUST use
snake_case. - Server code MUST NOT read environment variables via
process.envdirectly; all env reads MUST go throughpackages/trueforge/src/config.ts, unless there is a documented special requirement (for example bootstrap before config is loaded). - UI styles MUST use
remfor lengths (notpx); assume 1rem = 16px. Prefer Tailwind spacing/type scale utilities when they fit. Exceptions:0pxincalc()/env()fallbacks, existing media-query breakpoints, and canvas/measurement APIs that require CSS pixels.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago Changed · -5 tokens per session d40cd0259f7e
- 20d ago Changed · +1 lines · +78 tokens per session ed247d633a0a
- 1mo ago Changed · +1 lines · +39 tokens per session 1165244aa11d
- 1mo ago Changed · +2 tokens per session 130bd3982734
- 1mo ago Changed · +8 tokens per session b2e9b72c27e0
- 2mo ago Changed · +1 lines · +70 tokens per session 2fecae8550e4
- 2mo ago Changed · +7 lines · +108 tokens per session e133bf6b08f2
- 2mo ago Changed · +81 tokens per session cf6eb954c1d3
- 2mo ago First seen · 23 lines · 1,070 tokens per session scan A e685cd2cffae
trueforge AGENTS.md is an instructions file published in the GitHub repository truefoundry/trueforge (6,443 stars, last pushed yesterday), licensed MIT. It adds 1,451 tokens to every session, about $0.0058 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
trueforge AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| trueforge AGENTS.mdtruefoundry/trueforge | Instructions file | 6.4k | yesterday | MIT | A | 1,451 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |