interpreter
Enable an agent to identify a software interpreter, assess its execution capabilities and state, and decide whether and how to run a given program with it.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to identify a software interpreter, assess its execution capabilities and state, and decide whether and how to run a given program with it.
An interpreter is a software system that executes a program by evaluating its source text or an intermediate representation, rather than requiring a separately generated native executable before execution.
It can be Check whether a program's required language features and dependencies match the interpreter.; Prepare an invocation with explicit arguments, environment, input representation and module paths.; Execute instructions in a fresh or deliberately reused runtime context.; Inspect results, exceptions, traces and exit status.; Apply supported resource limits and host-access restrictions before execution.; Interrupt execution or reset a session using documented controls..
Distinguishing features
It executes supplied instructions under a language's rules; a parser alone only recognizes or structures input.
Its relevant role is running programs, whereas a standalone compiler's relevant role is producing another program representation for subsequent use.
It may combine interpretation with compilation, so the presence of bytecode or just-in-time compilation does not by itself exclude it.
It applies programmable execution semantics rather than merely displaying, decoding or translating content.
A shell or virtual machine falls within this model only for its instruction-execution role; command orchestration or machine abstraction may require neighbouring models.
Scope
+ Supported languages, dialects, versions and extensions
+ Execution of source text, syntax trees, bytecode or other intermediate instructions
+ Evaluation rules, runtime state and interaction modes
+ Dependencies, host interfaces and resource access
+ Execution diagnostics, limits and isolation controls
- Human language interpreters and interpreting services
- The programming language specification as an independent information artifact
- Programs executed by the interpreter and their application-specific correctness
- Standalone compilers and their independently distributed output
- Editors, development environments and operating systems that host the interpreter
Characteristics
- Accepted language contract
- Language specifications, dialects, versions and enabled extensions Determines which programs the interpreter is intended to accept and what their instructions mean.
- Accepted instruction representation
- Source text, syntax tree, bytecode, other intermediate representation, or documented combination Determines which preparation steps and input artifacts execution requires.
- Execution strategy
- Direct interpretation, intermediate-code interpretation, mixed interpretation and compilation, or unresolved Helps explain execution behaviour and boundaries with compilers and virtual machines.
- Invocation modes
- Batch execution, interactive session, embedded API, service endpoint, or implementation-specific modes Determines how an agent can submit instructions and obtain results.
- Runtime readiness
- Unverified, ready, missing dependencies, incompatible configuration, failed, or unavailable Separates an installed artifact from an execution environment that can actually run the intended program.
- State persistence
- Per invocation, per session, shared across sessions, explicitly checkpointed, or unknown Determines whether earlier execution can affect later results.
- Effective host capabilities
- Accessible filesystem locations, network interfaces, processes, native libraries and privileged host APIs Establishes what executed instructions can affect beyond interpreter-managed state.
- Configured execution limits
- Time in seconds, memory in bytes, instruction or recursion counts where supported; unspecified limits recorded explicitly Supports bounded execution and distinguishes configured limits from measured resource consumption.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.interpreter-person
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 17 findings · 27 questions.
Language contract What instructions this interpreter accepts and which semantic commitments govern their execution.
An interpreter cannot be selected reliably from its product name alone; language compatibility must be established.
Language and dialect
Supported language identities and the scope of compatibility.
Supported language boundary
Record the claimed language versions, dialects and extensions separately from compatibility demonstrated by evidence.
- Which language specifications, versions and optional extensions does this interpreter claim to implement? definition
- What documentation or conformance evidence supports those claims and identifies deviations? provenance
Accepted program forms
The representations and preparation requirements at the execution boundary.
Executable input contract
Identify accepted instruction representations and distinguish interpreter inputs from artifacts requiring another tool first.
- Does execution accept source text, syntax trees, bytecode or another representation, and with what format or version constraints? definition
- Which parsing, translation or compilation steps occur inside the interpreter, and which require a separate component? boundary
Evaluation and runtime state How instructions are evaluated and how execution state persists.
The same input can behave differently under different evaluation settings or previously established runtime state.
Evaluation behaviour
Execution mechanisms and implementation choices relevant to observable program behaviour.
Semantic execution profile
Record evaluation choices and configurable behaviours that affect the meaning or outcome of accepted instructions.
- Which evaluation rules are fixed by the language contract, and which depend on interpreter options or implementation choices? boundary
- What checks demonstrate the behaviour of relevant numeric operations, evaluation order and exception handling? measurement
Session state
The lifetime and sharing of bindings, loaded modules and other interpreter-managed state.
State lifetime and reset
Describe which execution effects persist and what is required to obtain a fresh runtime context.
- Which bindings, module instances, caches and execution settings survive between submissions or are shared between sessions? definition
- How can an agent reset interpreter-managed state, and which external effects remain after that reset? action
Invocation and integration How an agent starts execution and supplies the surrounding runtime environment.
Language support is insufficient when invocation conventions, module resolution or host dependencies prevent execution.
Execution entry points
Batch, interactive and embedded interfaces exposed by the interpreter.
Submission and result protocol
Record how programs and arguments enter the interpreter and how completion and outputs are communicated.
- Which command-line, interactive, embedded or service interfaces accept instructions, arguments and standard input? action
- How does each interface distinguish returned values, ordinary output, diagnostics and completion status? definition
Dependency and host binding
Required runtime components and resolution of imported or host-provided functionality.
Runtime resolution context
Identify the environment that determines which modules, libraries and host interfaces executed instructions receive.
- Which runtime components and host versions are required for this interpreter build and intended program? definition
- How are module paths, native libraries, working directories and environment variables resolved for an invocation? action
Execution control and isolation What interpreted instructions may access and how execution can be bounded or stopped.
An interpreter mediates executable instructions, making effective authority and interruption behaviour central to permitted actions.
Host access
Capabilities exposed to programs and the mechanisms enforcing restrictions.
Effective program authority
Record accessible host resources and distinguish interpreter-enforced restrictions from protections supplied by its host.
- Can executed code access files, networks, subprocesses, native extensions or privileged host objects in this configuration? boundary
- Which restrictions are enforced by the interpreter, which by external isolation, and what evidence establishes their coverage? provenance
Limits and interruption
Resource budgets, cancellation mechanisms and behaviour when execution is terminated.
Bounded execution controls
Identify enforceable execution budgets and the state left behind by limit violations or cancellation.
- Which time, memory, recursion or instruction limits can be enforced, and do they cover native calls and spawned work? measurement
- How can execution be interrupted, and must the runtime be discarded before another program can safely run? action
Diagnostics and reproducibility Evidence needed to explain execution outcomes and reproduce them under a known interpreter configuration.
An agent must distinguish program failures from interpreter failures and preserve enough execution context to investigate either.
Failure observation
Errors and traces exposed across parsing, loading and execution.
Failure classification and location
Capture failure categories and their association with the instructions or runtime components involved.
- How are syntax errors, dependency failures, runtime exceptions and interpreter crashes distinguished? definition
- Which source locations, stack frames or execution traces can an agent retrieve for diagnosis? action
Execution context evidence
Interpreter identity and environmental factors needed to compare or repeat executions.
Reproducible runtime record
Link observed behaviour to a specific interpreter artifact, configuration and relevant runtime inputs.
- What build identifiers, artifact provenance, flags and dependency versions identify the interpreter used for this execution? provenance
- Which state, random seeds, locale, clock inputs or scheduling factors must be controlled to repeat the observed result? measurement
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The name has no recorded sense. This description assumes the software meaning; the registry classification should be checked before adopting it.
- Interpretation and compilation are implementation techniques that often coexist, rather than mutually exclusive properties of a programming language.
- These are recalled facts, not researched findings; no sources were consulted.
- Which of these check these first hold for the sense of interpreter this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Tree-walking interpreter
- Bytecode interpreter
- Interpreter combined with just-in-time compilation
- Which of these kinds and varieties hold for the sense of interpreter this model covers, and on what evidence? provenance
Standards and regulation
Recalled without web access and unsourced; every item is a lead to verify.
- ECMA-262, issued by Ecma International, specifies ECMAScript semantics that an ECMAScript interpreter must implement to conform; it does not require interpretation as the execution method.
- Which of these standards and regulation hold for the sense of interpreter this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Running scripts and automating tasks
- Providing interactive programming environments
- Embedding programmable behavior in applications
- Executing portable bytecode
- Implementing and experimenting with programming languages
- Which of these real-world use hold for the sense of interpreter this model covers, and on what evidence? provenance
Typical measurements
Recalled without web access and unsourced; every item is a lead to verify.
- Program execution time - Depends on the workload, implementation and hardware; no general range applies. - seconds
- Peak memory consumption - Depends on program state and runtime implementation; no general range applies. - bytes
- Which of these typical measurements hold for the sense of interpreter this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Incorrect implementation of language semantics produces wrong results.
- Untrusted programs can access host resources unless access is effectively restricted.
- Programs can exhaust memory or execution time.
- Differences between versions or implementations can break compatibility.
- Interpreter overhead can make performance inadequate for a workload.
- Which of these failure modes and hazards hold for the sense of interpreter this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- compiler - A compiler translates a program into another representation; an interpreter executes it. A single implementation can combine both functions.
- virtual machine - A virtual machine provides an abstract execution environment; interpretation is one way to implement that environment.
- runtime system - A runtime system supplies execution services such as memory management; it need not interpret program instructions.
- human language interpreter - A human language interpreter mediates communication between languages rather than executing computer programs.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of interpreter this model covers, and on what evidence? provenance
What the second pass must settle
- Does vr.tr.interpreter denote a software interpreter, a human interpreting role or another sense, and what registry evidence resolves this ambiguity?
- Does an existing Vercy world model already cover this concept and therefore need to be linked instead of creating a separate publication?
- Where does this registry draw the boundaries between interpreter, runtime, virtual machine, shell and mixed compiler-interpreter implementations?
- Should the model primarily describe an interpreter implementation, a distributed build or a running instance, and how should those identities be related?
- Which authoritative specifications, implementation documentation and observed tests should substantiate language compatibility, isolation and interruption claims during research?