Move runtime resolution and pooled execution into the tinyruntime module - #5664
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Add the tinyruntime repository as a new Git submodule under vendor/tinyruntime, pinning it to commit 02418aa86. This makes the runtime dependency available for local development and ensures all contributors use the same version. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Adds the tinyruntime-bus crate as a workspace dependency, pointing to the vendor/tinyruntime submodule. The crate provides only the contract types for the TinyBus runtime router, deliberately avoiding the router itself and its heavy dependency tree. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Add three new module records for the tinyruntime system: the runtime router itself and its Node.js and Python provider modules. These are declared lazy because a host that never runs a skill or flow step should not pay the cost of downloading and loading runtime support. The assets arrays are deliberately empty until the first published releases are cut. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The Node.js and Python runtime providers were sharing the same D-Bus object path as the generic tinyruntime provider, which is invalid because two modules cannot claim the same bus name and tinybus derives the path from the name. Each provider now uses a unique path that includes its language identifier. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Add a check to return an appropriate error when the runtime module is not found, preventing a panic or undefined behavior during module loading. This improves robustness when the runtime is absent or misconfigured. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Add a new `runtime` module that exposes the ability to resolve a language runtime and execute code on it via `tinyruntime`, making this functionality available to consumers of the crate. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The Cargo.lock file was updated to include the new `tinyruntime-bus` crate at version 0.2.1, which is now required by the project. This change ensures the dependency graph is complete for building. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Remove unnecessary `super::runtime::` and `super::registry::` path prefixes by importing the required symbols directly from `super` and `crate::openhuman::modules::registry`, making the test code more concise without changing its behaviour. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Extract the host key enumeration into a shared helper and replace the single test that checked every record against every host key with two tests: one that verifies records with pinned releases cover all hosts, and another that enforces all-or-nothing coverage to catch partial drift. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Reformat the import ordering and the Display match arm in the runtime module to follow consistent style conventions, and adjust the test file imports and assertion formatting accordingly. No functional changes are introduced. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
tinybus_module! builds a module manifest object path from its bus name, so providers sharing one path would ship manifests disagreeing with the objects they export. Each provider now serves at the path derived from its own bus name, and the router derives the same path when routing. Co-authored-by: Medulla <medulla@tinyhumans.ai>
…me module The Node.js bootstrap, downloader, extractor, and resolver modules have been replaced with a thin adapter that delegates all toolchain resolution to the shared tinyruntime module. This eliminates the duplicated download-and-install pipeline that was specific to Node.js, replacing it with a language-agnostic implementation that works identically for every runtime. The NodeBootstrap type and its three public methods are preserved so that the shell, exec tools, and harness initialiser did not need to change, keeping the migration reviewable. The memoised cache is retained because try_cached must answer without awaiting, which is critical for the shell's PATH injection on every command. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The Node runtime module no longer owns downloading, extracting, or resolving system Node — those responsibilities now live in the `tinyruntime` module. The bootstrap module becomes a thin client that adapts a `ResolvedRuntime` into a `ResolvedNode`, and the test suite is rewritten to cover that adaptation seam instead of the old probe-and-install flow. The `downloader`, `extractor`, and `resolver` submodules are removed, and the module documentation is updated to reflect the new boundary. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…runtime module The Python bootstrap no longer owns interpreter discovery, download, or installation. All of that work has moved into the shared `tinyruntime` module, which handles the same pipeline for every language. What remains in the bootstrap is the adapter that turns a module answer into the `ResolvedPython` type that callers already name, plus the `spawn_stdio` method that launches long-lived Python children. The old downloader, extractor, and resolver modules have been removed entirely, and the tests now cover only the seam between the module and the core. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…odule The pool implementation — warm interpreter children, the newline-delimited job protocol, backpressure, idle reaping, and recycle-after-N — has been moved into the `tinyruntime` module so that one implementation serves every language. This change removes the local pool, worker, protocol, environment, and harness files, and rewrites the module root to be a thin client that delegates to the module and maps its replies back onto the shapes the existing exec tools already handle. The three-way `PoolRunError` distinction (saturated, pre-dispatch, post-dispatch) is preserved locally because `node_exec` and `python_exec` match on it to decide between reporting a result, falling back to a per-call spawn, and refusing to retry. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…spatch Replace the per-language pool backends with thin wrappers that call a common `super::run_inline` dispatch, removing the duplicated worker-launch logic, harness materialisation, and inline test suites from `node.rs` and `python.rs`. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Replace the explicit field cloning in NodeBootstrap and PythonBootstrap constructors with a direct reference to the root configuration, reducing code duplication and making the construction logic more concise. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…otstraps Replace multiple per-call Config clones with a single Arc-wrapped snapshot that is shared between the Node.js and Python runtime bootstraps. This ensures both language clients always see the same session configuration, preventing any possibility of version disagreement during tool execution. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The `resolved` parameter was removed from `try_pool_inline` because it is no longer needed; the function now passes the bootstrap configuration directly to `run_inline` instead of extracting individual fields from the resolved node. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The `resolved` parameter was being passed to `try_pool_inline` in both Node and Python executors but was not actually used by the underlying pool infrastructure. Removing it simplifies the call sites and eliminates a dead argument, making the code clearer and reducing the chance of confusion about which parameters are meaningful. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The `resolved` parameter was removed from the `try_pool_inline` method signature because it is no longer needed for the function's logic. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Update the runtime module documentation to reflect that the toolchain download, extraction, and caching machinery has moved into the `tinyruntime` module, leaving the runtime directory as a client-side adapter. The python_exec tool call is also corrected to remove a stale reference to the resolved parameter that no longer exists in the function signature. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Change the `NodeBootstrap` and `PythonBootstrap` constructors to take an `Arc<Config>` instead of a cloned sub-config, reducing allocations and simplifying the call sites. The node stub is also updated to hold the full config and expose a `config()` accessor, while the doc comments are cleaned up for clarity. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Changed the `resolve_node` function to pass a single `Arc<Config>` to `NodeBootstrap::new` instead of cloning individual fields, reducing unnecessary cloning and simplifying the constructor call. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The module documentation was rewritten to reflect the current architecture, where the Node.js backend is now a client of the `tinyruntime` module rather than a direct implementation. The re-exports under the `runtime-node` feature were reduced to only `execute_tool` and `list_tools`, removing several items that are no longer needed at this facade layer. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Replace the verbose manual construction of NodeBootstrap in test code with a single call to `Config::default()`, reducing duplication and making the tests easier to maintain. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Removed the unused `NodeConfig` import from test functions in the node and npm exec modules, and replaced the `ResolvedPython` import with just `PythonBootstrap` in the python exec module to clean up unused dependencies. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The xz2 crate with its static liblzma C build has been removed from the manifest, as toolchain archive extraction now lives in the tinyruntime module. The runtime-node feature gate is kept as an empty list to continue controlling the presence of the Node.js tools and controllers themselves. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The xz2 crate and its transitive dependency lzma-sys have been removed from the lock file, as they are no longer required by any direct dependency in the project. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…nyruntime module Update the Node.js and Python runtime READMEs to reflect the architectural change that moved all toolchain installation, download, verification, and extraction logic into the shared `tinyruntime` module. The Node runtime now acts as a thin client that delegates to the module and adapts its response, while the Python runtime similarly sheds its install pipeline and retains only the process-launch helper for long-lived children. Both READMEs clarify the new separation of concerns, updated file listings, and the rationale for keeping local memoisation despite the module's own caching. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Updated the Cargo.lock file to reflect changes in dependencies, ensuring the lockfile remains in sync with the current Cargo.toml. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Replace direct imports from the module bus with a new `client` module that provides an ungated compilation path. This allows the runtime directory to compile even when the module bus feature is disabled, while keeping the same public API surface for consumers. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…nhuman/runtime/client/mod.rs Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The `languages` function in the disabled runtime client was removed because it is no longer called anywhere in the codebase, and its associated `LanguagesResponse` import was cleaned up to keep the module minimal. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The `languages` function was re-exported from the `modules::runtime` facade but is never called by anything in the `runtime/` crate, so it has been removed from both the real and the disabled-stub re-export lists to keep the public surface minimal and avoid forcing the stub to maintain an unused twin. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The kernel-floor limits file is updated to reflect the addition of the tinyruntime-bus package, which moves language runtimes behind the TinyBus module. This change increases the package count from 283 to 284 and the name count from 265 to 266 while keeping native dependencies unchanged. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
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In `@scripts/kernel-floor.limits`:
- Line 16: Update the date in the measurement entry comment to the actual
measurement date, using 2026-08-21 if it records the current run; leave the
kernel limits and descriptive text unchanged.
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The expected name count for the `dep-sim.py` guard in the CI lite workflow is raised from 265 to 266 to reflect the addition of the `tinyruntime-bus` name, which was introduced when language runtimes were moved behind the TinyBus module. The comment is also updated to document the reason for the change and to point to the matching entry in the kernel floor limits file. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
How this change flows1 changed behaviour across 3 relationships. 4 surrounding behaviours are shown (60 graph nodes walked). 33 further behaviours left out to keep the diagram readable. flowchart LR
n0["node_runtime_step<br/>changed"]:::changed
n1["openhuman"]:::impacted
n2["filter"]:::impacted
n3["pin"]:::impacted
n4["map_err"]:::impacted
n0 -->|calls| n3
n3 -->|uses| n1
n4 -->|calls| n2
classDef changed fill:#0d4429,stroke:#238636,color:#e6edf3
classDef impacted fill:#161b22,stroke:#6e7681,color:#c9d1d9
classDef flagged fill:#5a1e02,stroke:#d93f0b,color:#ffffff
classDef blocking fill:#67060c,stroke:#f85149,color:#ffffff
Green: changed behaviour. Grey: surrounding behaviour. Arrows name the call, use, implementation, or test relationship. Orange: has findings. Red: has a finding that blocks the merge. |
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In @.github/workflows/ci-lite.yml:
- Line 564: Update the date in the CI explanation comment near the
runtime-version change to the actual change date, or remove the date entirely;
do not leave a future timestamp.
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Updated the pinned commit for the tinyagents vendored dependency to incorporate upstream changes. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The contributor feature set now lists two native builds instead of three, reflecting the removal of `lzma-sys` from the default features. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The stub's Debug implementation now mirrors the real client by redacting the Config field, ensuring both render identically in logs and preventing the disabled build from leaking secrets like api_key. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Updated the test helper to pass a single Arc-wrapped config clone instead of three separate arguments when constructing NodeBootstrap, matching a recent refactor of the production API and reducing boilerplate in the test setup. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Add a mock for the validateFeedback API function in the Feedback test file, including a default resolved value, to support upcoming tests that exercise feedback validation logic. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The bootstrap tools now receive an Arc::clone of the session's config reference rather than a separately-cloned root_config, ensuring that the registry and all language clients operate on the same configuration snapshot for the entire session. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The test fixture for the debug dump writer was missing the `tool_specs` field, which caused a compilation error after the struct was extended. This change adds an empty vector to satisfy the new field requirement. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
…umps The test assertions for agent debug prompt dumps were missing the tool_specs field in the expected DumpedPrompt structs, causing compilation failures after the struct was extended. This change adds empty tool_specs vectors to match the updated struct definition. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The test assertion for the research tool's description is updated to reflect that the repeated "direct tools are insufficient" prefix has been intentionally removed from delegate-tool descriptions, as the orchestrator's own prompt already carries that rule once. The assertion now checks for the remaining content that confirms the description still contains the target agent's `when_to_use` guidance. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
The test assertion for the research tool's description was updated to match the new expected text, and an additional assertion was added to verify that the description no longer contains a phrase about direct tools being insufficient. This ensures the test reflects the current behaviour of the approval channels raw coverage. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
Co-authored-by: Medulla <medulla@tinyhumans.ai>
…tructs Two raw coverage end-to-end test files contained struct literals with duplicate `tool_specs` fields, which would cause a compilation error in strict Rust editions. The extra, redundant fields have been removed to keep the test data valid and compile cleanly. Auto-committed-on: dragonfly Co-authored-by: Medulla <medulla@tinyhumans.ai>
What changed
Moves language-runtime resolution, installation, and pooled execution out of the
core and into the
tinyruntimeTinyBus module, then rewires every caller to it.55 files, +1837 / −5148.
The core kept the machinery that every host reimplements slightly differently:
probing for an interpreter, downloading a distribution, verifying its digest,
unpacking it, promoting it into a cache, remembering it across restarts, and
keeping warm interpreter children in front of it. All of that now lives in
tinyruntime, which does it oncefor every language.
Approach: adapter-preserving
The seams callers already use —
NodeBootstrap::resolve(),PythonBootstrap::resolve(),pool::{node,python}::run_inline— are unchanged inshape. Only what sits behind them changed. The shell, both exec tools, the harness
initialiser, the skills runtime, and the Python server never learned that anything
moved. That is what kept a 5000-line deletion reviewable.
What was deleted
Both
downloader.rs, bothextractor.rs, bothresolver.rs, and the entire poolimplementation (
worker.rs,pool.rs,protocol.rs,env.rs, and both harnessscripts). Roughly 400 lines of client code replaced them.
process.rsdeliberately stayed: it launches the long-lived stdio children thiscore owns — the Python model server, the stdio MCP servers — which outlive a job
and speak their own protocols. The module resolves the interpreter; the core still
decides what to run with it.
Added
vendor/tinyruntimesubmodule, for the contract crate only. Never the routeritself: it ships as a loadable module, and a host that also compiled it would
carry the download pipeline and worker pool for nothing.
tinyruntime-bushastwo pure-Rust dependencies.
src/openhuman/modules/runtime.rs— the client facade (resolve,execute,languages,pool_stats), translating this host's config into requests percall so a version pin takes effect on the next run rather than the next restart.
A native build left the manifest
xz2and its static liblzma C build are gone from openhuman entirely.docs/specs/2026-08-02-core-kernel-domain-reorg.mdhad this queued as "shed itwhen
runtime-nodeis off". Because extraction moved out rather than being gated,it left for every configuration instead of only slim ones.
runtime-node = []now — the gate still buys the absence of the tools and controllers, but no longer
sheds a native build.
AGENTS.md, the reorg spec, andlibrary-minimal-recipe.mdare updated to say that rather than keep claiming a win that changed shape.
Public API / behaviour changes
NodeBootstrap::newandPythonBootstrap::newnow takeArc<Config>insteadof a per-language config block plus a workspace path and an HTTP client. Both
gained
config(), because the pooled-execution path needs the sameconfiguration and threading a second copy through would give two answers to
"which version".
pool::{node,python}::run_inlinetake(&Config, code, cwd, timeout)— theinterpreter paths and workspace directory are the module's business now.
runtime::nodeandruntime::pythonno longer re-export resolver, downloader,or extractor items; nothing outside those modules used them.
runtime_poolmaster switch, pooling defaults, and the legacy per-call-spawn fallback are all
unchanged.
Validation
cargo check --lib— cleancargo check --lib --features runtime-node— cleancargo check --all-targets— cleancargo fmt -- --check— cleancargo test --lib— 11215 passingFour tests fail, and none are from this change. I verified each by running it
on unmodified
mainin a clean checkout, where it fails identically:main?cron::…::cron_agent_job_short_loopback_send_error_stays_retryablecron::…::run_agent_job_returns_error_without_provider_keygit_operations::tests::allows_readonly_ops_in_readonly_modefatal: not a git repositorygit_operations::tests::not_in_git_repo_returns_errorfatal: not a git repositoryI did not fix them — they are outside this change and each deserves its own
diagnosis.
Notes for the reviewer
PoolRunError's three variants now cross a repo boundary, and theclassification is the part most worth scrutiny.
PreDispatch→ the job provablynever ran, so the legacy per-call spawn is safe.
PostDispatch→ it may haveexecuted, so it is never retried.
Saturated→ do not spawn, because thatreintroduces exactly the resident memory the pool caps. The default is
PreDispatch, deliberately asymmetric: mistaking a run job for un-runduplicates side effects, while the reverse costs one fallback spawn. See
src/openhuman/runtime/pool/README.md.can answer without awaiting, which is what lets
shelldecide onPATHinjection per command without a bus round trip on every unrelated command.
registry.rs's coverage invariant was made precise, not weakened. Itassumed every record pins a release. It is now scoped to records that publish
assets, plus a new companion assertion that a record publishes for every host
key or for none — partial coverage being the drift that actually bites.
library-profile skill-runpool gate still holds. A TinyBus module is acdylibloaded in-process, so a worker it spawns is still a child of thisprocess and still appears in the tree sample the gate asserts on.
Follow-ups (deliberately not in this PR)
The three registry records carry no pinned assets, because no release exists
yet. The modules load from a developer build (
modules.local) orOPENHUMAN_MODULE_PATH; a download attempt correctly reports that no artifact ispublished for this platform. I did not fabricate digests —
registry.rsrequiresthem taken verbatim from a release's
checksum.toml. Filling them in is aseparate commit once the three module repos cut releases.
Depends on
vendor/tinyruntimepins that first branch; the gitlink should be repointed atmainafter it merges.Summary by CodeRabbit
New Features
Bug Fixes
Documentation
Update — gating and lockfile
Two follow-ups landed after the initial push, both found by CI:
openhuman::modulesis behind themodulesfeature, butruntime/is not.ShellToolholds anOption<Arc<NodeBootstrap>>and is kernel, so the toolchainclients are always compiled — importing
modules::runtimedirectly broke everygates-off build. The clients now go through
runtime::client, an ungated facadethat is the real client with
moduleson and a stub returning "unavailable" withit off. That is the same facade-plus-stub shape
runtime-nodealready uses, andit keeps the off-state looking like a runtime that is not there rather than a
compile error.
app/src-tauri/Cargo.lockneeded the newtinyruntime-busentry; the Taurishell resolves the core as a path dependency, and CI builds it with
--locked.Kernel dependency floor: raised by one, deliberately
scripts/check-kernel-floor.shcaught this and asks for a writtenjustification, so:
The
flowsprofile goes 283 -> 284 packages and 265 -> 266 names. Nativebuilds are unchanged at 2. The diff is exactly one crate in and none out —
cargo tree --no-default-features --features flows -e normalbefore and afterdiffer by
tinyruntime-busalone.Why it cannot be gated.
ShellToolholds anOption<Arc<NodeBootstrap>>asa field and
tools/impl/system/shell.rsis kernel, so the toolchain clients inruntime/are always compiled — the same constraint that already forcesruntime/node/stub.rsto exist. Those clients name the contract's payload types.Gating them would mean a parallel set of runtime types for the gates-off build,
which is worse than one small crate.
No new third-party code enters.
tinyruntime-busisserdeandserde_jsonand nothing else, both already in this profile; its own CI assertsit stays free of a transport, an async runtime, an HTTP client, and any native
library.
What it buys, which this profile cannot see. Downloading, verifying and
unpacking language toolchains left this repository entirely, taking
xz2andits static liblzma C build with it. The 2026-08-09 entry in
kernel-floor.limitsshed those fromflowsby gating them behindruntime-node; they are now gone from every configuration, including theproduct set that ships.
runtime-node = []as a result.Measured on Linux with
scripts/kernel-floor.sh flows: 284/266/2.