Toolframe core

Toolframe is a persistent local control host for replaceable Python plugins. Core owns composition, immutable package environments, worker lifecycles, management operations and a durable Core journal. SQLite (data/core.sqlite) is the default; Core 0.6 also supports a dedicated PostgreSQL database through runtime environment configuration. Dashboard, MCP, llms.txt, business storage and Entry Register are independently packaged plugins.

The standard executable can start an empty host or an Entry Register application with Dashboard, MCP, documentation, storage and access-password plugins. Business data survives plugin replacement and removal. Plugins run trusted Python code; worker isolation is not a sandbox for untrusted packages.

For PostgreSQL provisioning, startup and recovery, see PostgreSQL Core state. Both backends run one Core per application and retain configuration, private keys and artifacts in its home.

Operator backup tools can use the public offline maintenance interface to hold the application lock and validate stopped local SQLite state.

Optional OpenTelemetry tracing and logs follow HTTP and nested plugin calls with application, plugin and function context. Telemetry is disabled by default and adds SDK/exporter dependencies only when enabled; structured local logging works independently, and log export requires its own opt-in.

Quick start

Install the native CLI with uv:

uv tool install toolframe
toolframe --home ./my-app init --template entry-register
toolframe --home ./my-app serve

In another terminal, run toolframe --home ./my-app open for the local sign-in link. uvx toolframe ... runs the same CLI without a persistent installation. The GitHub Release archives contain the identical executable for installation directly on PATH.

The executable contains no Python wheels. First use reuses a compatible uv or prepares its verified fallback, installs Python 3.14.7 and toolframe-core from PyPI, and resolves each selected plugin independently. Core requires fastapi-cordis==0.2.2. init without --template creates an empty application; the Entry Register template selects storage, Dashboard, MCP, documentation and password providers. Plugin choices remain in the application configuration.

Native CLI wheels target macOS 12+ on Apple Silicon and Intel, and Linux glibc 2.28+ on ARM64 and x86-64. Windows and musl Linux are outside this release. Intel macOS automatically downloads a separately published cryptography wheel from the matching GitHub Release and verifies its pinned SHA-256. First use needs network access; --offline requires previously prepared assets. See runtime preparation for caches, uv selection and local wheels.

Pass --home PATH before the subcommand. toolframe --version and -V print the launcher version without preparing Python or contacting a package index. Python library users can install toolframe-core on Python 3.14+; plugin authors install toolframe-sdk. The Python CLI entry point is toolframe-core.

LAN access

The default listener is 127.0.0.1. Bind all IPv4 interfaces for one run:

toolframe --home ./my-app serve --host 0.0.0.0

To save the address when creating an application:

toolframe --home ./my-app init --template entry-register --host 0.0.0.0
toolframe --home ./my-app serve

Existing applications can set host = "0.0.0.0" under [application] in toolframe.toml, then restart core. serve --host overrides that value only for the current process; it does not edit the composition. A specific LAN IP or IPv6 address is also supported; use --host :: for all IPv6 interfaces. Host values are IP addresses or localhost, without a URL, brackets or port.

On another device, open http://SERVER_LAN_IP:9876. Dashboard business access is public until a password is configured. For example, use the server's actual 192.168.x.x address, not the wildcard 0.0.0.0 bind address. toolframe open and management CLI commands continue to use a connectable local address when core binds a wildcard. The effective listener is recorded in .toolframe/endpoint.json, including a temporary serve --host override.

MCP (/mcp), llms (/llms.txt, /llms/...) and explicitly published business APIs are public. System management requires direct local control, a management token or the corresponding password scopes. Host/Origin checks still reject arbitrary DNS names and cross-origin browser requests; use the server's numeric IP for LAN access. Provider worker ports remain private loopback listeners behind core. The public /healthz endpoint continues to report core liveness.

For a canonical HTTPS origin, shared OIDC Dashboard login and revocable Agent access, install the optional OIDC plugin and follow OIDC authentication.

To repeat the real executable/LAN acceptance probe with this machine's IPv4 address (it creates and stops a separate temporary application):

uv run python scripts/verify-network.py \
  --binary target/release/toolframe \
  --address SERVER_LAN_IP --output build/lan-access.json

Develop a custom plugin with an agent

init supplies the bundled toolframe-plugin-design skill at APP/.agents/skills/toolframe-plugin-design. Open an agent session in that application directory and invoke $toolframe-plugin-design with your business requirements. Existing sessions may need to refresh skill discovery.

The skill covers domain/data design, public SDK services, managed SQLite, optional Streamlit/MCP/llms resources and validation/reload. Its references and buildable Notes template ship inside the Core wheel; no Toolframe source checkout is required. Create source with the same CLI the agent uses:

toolframe --home APP plugin new customer-notes
# Or select an exact destination and get machine-readable output:
toolframe --home APP plugin new reading-tracker --output ./plugins/reading-tracker --json

The default is APP/plugins/<plugin-id>/. --output is the complete destination, relative to the current directory when not absolute. Existing files, directories and symlinks (including dangling links) are refused with exit 5. IDs follow the existing lowercase slug rule: [a-z][a-z0-9-]{0,63}.

For customer-notes, the distribution is toolframe-customer-notes, Python module is toolframe_customer_notes, entry-point key and plugin ID are customer-notes, and services use customer-notes.*. JSON returns plugin_id, package_name, python_module, the absolute path, and status: "created". For an ID ending in -, the distribution adds plugin at the end so it remains a valid Python package name (for example a- → toolframe-a-plugin); the module uses that distribution with hyphens changed to underscores. The plugin ID is kept.

Generation needs no initialized application, installed skill, server or management token. It creates source only: no wheel build, plugin dependency installation, composition edit, registration or activation. The launcher still prepares its own core runtime on first use when necessary. plugins/ is not scanned or loaded automatically.

Customize the generated service, schema, page, read-only MCP tool and llms document for the business requirements; remove optional surfaces you do not need. Existing plugins are edited directly, never regenerated. Build from the generated directory with uv build --wheel. With core running and required providers installed:

toolframe --home APP plugin add APP/plugins/customer-notes
toolframe --home APP plugin validate customer-notes
toolframe --home APP plugin validate customer-notes --runtime
# Explicit activation after validation:
toolframe --home APP plugin enable customer-notes

The Notes starter requires the SQLite storage provider; install and enable it before runtime validation/activation. add captures and builds the local source, validates it, and leaves it disabled by default. See the operations reference for provider installation, wheelhouse configuration, reload and explicit migrations.

For an existing application, or to obtain a separate copy:

toolframe --home APP skill install
toolframe --home APP skill install --output ./toolframe-plugin-design --json

--output names the exact skill directory. Installation needs no running server, application configuration or management token. The skill has its own semantic version in the SKILL.md YAML frontmatter, currently version: "0.3.1". An installation receipt records that version and every shipped file's SHA-256. The skill's top-level evals/ directory is development-only: it stays in the source repository and is excluded from the core wheel, installed copies and .toolframe-install.json. Upgrading an unmodified older copy removes its bundled evals and their receipt entries. Customized older copies retain the confirmation and backup protections described below.

After a binary update, serve refreshes the bundled skill before starting core. Updates affect only the installed skill; generated/customized business plugins under APP/plugins/ or an explicit output directory are never refreshed from it. Unmodified copies update automatically. Modified, added or deleted files require confirmation in an interactive terminal; the default answer keeps the local copy. Noninteractive startup keeps customizations, prints how to resolve the conflict, and continues serving. It does not repeatedly ask about a customized copy when the binary still ships the same skill. skill install explicitly checks for replacement.

JSON/noninteractive skill install returns exit 5 and confirmation_required: true when a decision is needed. After the user confirms, skill install --overwrite applies the replacement and saves the customized copy as a sibling ZIP archive. Use --output to compare or merge a separate copy instead. Destinations that are files or contain symlinks are retained; choose a new directory for those cases. The installer reports installed, updated, unchanged, or preserved and keeps .toolframe-install.json as its baseline. Global agent settings are untouched. The testing guide describes delivery, scaffolding and executable checks, including the limits of structural skill validation.

Install, inspect and replace plugins

toolframe --home ./example plugin add /absolute/path/to/plugin
# add installs and validates but leaves the plugin disabled; add --enable opts in.
toolframe --home ./example plugin validate plugin-id
toolframe --home ./example plugin validate plugin-id --runtime
toolframe --home ./example plugin enable plugin-id

toolframe --home ./example plugin update plugin-id
toolframe --home ./example plan --action reload --id plugin-id
# Review the affected members and copy result.plan_id from the completed plan.
toolframe --home ./example plugin reload plugin-id --plan-id PLAN_ID
toolframe --home ./example plugin status plugin-id --json --check

enable and apply reuse the latest installed candidate when its source matches composition, including after the original source or an older binary bundle is removed. They verify the retained wheel and rerun import/configuration preflight. reload and validate likewise reuse an installed exact pypi:package==version wheel; local directories, wheel paths, Git refs and unpinned index requests are captured afresh. A missing or modified retained wheel is an error, never an implicit package upgrade. Rebuilding a missing environment may require cached or downloadable dependencies.

update explicitly resolves the source again and stages a candidate; it does not change the active generation. Use it to pick up a replaced wheel or dependency resolution, or to change the requested source/version. reload does not enable a disabled plugin: use enable to restore its services, pages and tools. A reviewed plan binds the candidate content, desired revision, worker generations, catalog and schema history. Changed inputs produce a stale-plan error instead of applying a different candidate. --expected-revision protects managed edits to composition.

Supported sources are local directories (path:/absolute/directory), Git (git+https://host/repo.git@ref#subdirectory=path), wheel files/HTTPS URLs and pypi:distribution==version. Git refs resolve to full commits; local edits receive new content identities even when their package version is unchanged. Workers use captured wheels, never live editable imports. Each wheel supplies one toolframe.plugins entry point and one stable plugin ID.

Validation reports capture/build, environment, import, configuration and resource preflight separately. --runtime exercises a temporary application/store; it does not certify live business health. Status distinguishes the installed candidate, selected active generation, recent health, missing dependencies and last operation.

Composition and data

toolframe.toml is the desired authority. toolframe.lock records exact artifacts and environments. Core SQLite records actual generations, candidates, interrupted operations and recovery information. CLI/API edits compare revisions and replace TOML atomically. After editing TOML manually, run plan, then apply --plan-id PLAN_ID; export --output PATH writes a reviewable copy without overwriting an existing file. Schema-marked secret values and credentials are redacted in exports and management views; restore required secrets from the operator's original configuration before applying an exported copy.

Use [packages] find_links=["/absolute/wheelhouse"] for local distributions. TOOLFRAME_WHEELHOUSE provides the equivalent launcher/host override. The native launcher supplies verified Intel companion wheels without persisting cache paths in toolframe.toml. Explicit local wheels with the same filename take precedence for plugin resolution. Set watch=true on a local plugin to opt into stable, debounced validation and safe reload. Watch does not enable disabled or manually stopped plugins, migrate existing data, force termination or restart core.

Business storage is a replaceable provider. Each plugin receives a managed SQL and transaction client for its retained store. SQLite stores it at data/plugins/<id>/data.sqlite; the PostgreSQL provider uses a plugin-owned schema in the application database. Plugins access another owner's data through its public business service. No raw connection is supplied through the SDK client. Plugins remain trusted Python code, with access to their inherited environment.

SQLite and PostgreSQL providers can run together, with one retained store per plugin. Use service defaults and per-plugin bindings to select each backend; see SQL storage configuration. Binding changes do not migrate existing data and cannot reassign a retained store.

toolframe --home ./example migrate plan plugin-id
toolframe --home ./example migrate apply plugin-id --plan-id PLAN_ID

Fresh empty stores can initialize automatically. Existing-data migrations require explicit apply, a checked plan and a backup. A committed or uncertain schema upgrade never triggers automatic old-code recovery. Status exposes forward_repair until a compatible candidate is explicitly repaired/applied. Disabling or removing a plugin retains its database.

Lifecycle and management

Required dependents drain together. Admitted calls retain their generation and transaction leases until completion. Drain timeout keeps intact old instances; normal reload does not kill them. Worker/process-group cleanup must finish before a replacement starts. With unchanged schema and proven cleanup, a failed new cohort gets one attempt to restart the retained old snapshots. Its operation is reported as failed_recovered, not successful.

plugin stop ID --force is the explicit termination path. A manual stop remains fenced until enable/reload/apply explicitly resumes it. Core startup reconciles surviving worker ownership and interrupted operations; invalid TOML is visible through management rather than hiding the repair surface.

CLI, API and the Dashboard management page use the same durable operation engine. The Dashboard shows a plan before applying lifecycle changes and can reload its own provider; its UI session can reconnect while core completes the operation.

Operation history uses permanent, increasing sequence numbers, newest first. The Dashboard displays each number with its creation time in the browser's time zone, and defaults to 10 rows per page (also 25/50). Plugin, action and result filters query the entire journal, including operations for removed plugins. Previews are labeled with their planned action, such as plan reload.

GET /_toolframe/v1/operations?page=1&page_size=10 returns an envelope containing items, page, pages, page_size, total, through, newer_count and filter choices. Optional target, kind and status filters combine with AND; empty target= selects application-level operations. Page size is bounded to 1–100. Send the returned through on subsequent pages to exclude newer arrivals until an explicit refresh. Statuses remain current, so filtering by a changing status can change the result count. Out-of-range pages clamp to the last page. Requests without query parameters retain the legacy list of the latest 50 operations. All history reads require system.plugins.read and redact secrets. The Dashboard uses the same query through context.manage("operations", params); reading or filtering history never creates a journal operation.

Management accepts direct local control, a bearer token/sign-in cookie, or an access password with the required system scopes. The management token remains in .toolframe/management.token with owner-only permissions. The gateway defaults to loopback and validates Host/Origin. Dashboard business access follows the configured public/protected policy. MCP has an independent public/protected policy with optional bearer keys; see MCP authentication. The llms entrance remains public on LAN. See authentication for scope and fallback behavior.

Mutations support Idempotency-Key. Identical retries return the original operation, even if that operation changed the composition revision. Different requests using the same key return a conflict. Client disconnect does not cancel host work. CLI --no-wait returns the operation ID immediately; operation status ID and operation cancel ID manage it later.

CLI exit codes: 0 success/accepted work; 2 input/configuration; 3 validation or readiness; 4 runtime/recovery failure; 5 stale/conflict; 130 cancellation. Use --json for structured output and status --check when readiness should affect the exit code.

Repository boundaries

Core/SDK import no presentation provider. Workers have separate locked environments; Streamlit page contributors share a separately resolved Dashboard environment. An incompatible UI dependency set fails preflight. Replacing that shared process can reset Dashboard session state. Catalog/schema changes replace MCP and require client reconnection; backend-only changes can preserve MCP sessions.

Build and verify

For pinned source validation and platform wheel builds, see CI checks. For PyPI, Trusted Publishers and GitHub Releases, see releasing.

Local development uses sibling checkouts of the coordinated repositories. Build matching Python wheels into a development wheelhouse, then build the thin launcher:

uv sync --locked --group dev
bash scripts/dev-wheelhouse.sh
bash scripts/build-release.sh
uv run pytest -q
uv run ruff check src tests scripts
cargo test --locked
cargo fmt --check
uv run python scripts/verify-release.py \
  --binary target/release/toolframe --wheelhouse wheelhouse \
  --architecture arm64 --output build/release-arm64.json

--wheelhouse is an explicit local/offline input; no build step embeds its contents into the executable. Release wheels use scripts/build-launcher.py and Maturin. The same build exports the executable for GitHub Releases. Native Intel builds also pin the externally supplied companion described in FastMCP's build guide.

The copied-executable probe covers empty and Entry Register applications, Dashboard/MCP/llms services, online startup, retained data, reload and warm-cache offline restart. Omit --wheelhouse after publication to test public PyPI resolution. The SDK and providers have their own package checks; browser and independent client checks are recorded separately in the testing guide.

Documentation

• Object storage: local/S3 binary files and Image Gallery.
• Runtime preparation: installed uv reuse, overrides and offline startup.
• Architecture: ownership, packages, lifecycle and data contracts.
• Authentication: access policy, scopes and recovery.
• Dependency diagnostics: status and operation impact.
• SQL storage: simultaneous providers, ownership and migrations.
• Glossary: shared platform terminology.
• Testing and CI: reproducible validation and release gates.
• Changelog: development version changes.

License

Toolframe Core and its Rust launcher are licensed under the Apache License, Version 2.0. See LICENSE and NOTICE.

The bundled plugin authoring guide and templates in src/toolframe_core/bundled_skills/toolframe-plugin-design/ are licensed under MIT. Plugins generated by toolframe plugin new include the template's MIT license.

The package metadata uses Apache-2.0 AND MIT because the distribution includes both the Apache-licensed Core and MIT-licensed guide/templates. Each license applies to its respective files; this does not offer the Core under MIT. Third-party dependencies retain their own licenses.