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Alex0AI

RepoImmune MCP Server

by Alex0AI

RepoImmune verwandelt gelöste Bugs eines Repositorys in code-native, evidenzgestützte Prüfungen, die von Menschen und Coding-Agenten abgefragt werden können.

Eingabe

Verarbeitung

Ausgabe

Ein GitHub-Repository oder PR-Diff

Historische Issue → Fix → Test → AST-Evidenz abrufen

Exakte Regressionsstelle, Quell-Links, geschützte Tests und den historischen Fix

RepoImmune-Live-Demo: Patch-Evidenz und Kapsel-Wiedergabe

Schnellstart in 60 Sekunden

git clone https://github.com/Alex0AI/RepoImmune.git
cd RepoImmune
python -m venv .venv
# Windows: .venv\Scripts\activate
# macOS/Linux: source .venv/bin/activate
python -m pip install -e .
repoimmune init .
repoimmune check --diff examples/reintroduce-astropy-12907.diff --memory examples/memory
repoimmune replay astropy-12907 --memory examples/memory
repoimmune report --format html

Die Demo ist offline, schlüssellos und zur Laufzeit abhängigkeitsfrei. Die Prüfung beendet sich absichtlich mit 2, weil sie eine echte historische Regression aus Astropy PR #12907 findet.

Related MCP server: mcp-software-engineering-challenge

Was ist ausführbares Gedächtnis?

Eine Behavior Card ist keine Chat-Zusammenfassung. Sie bindet eine Invariante an Vorher/Nachher-Code, AST-Form, exakte Symbole, Regressionstests, Commits, Quell-URLs, Lizenz, Evidenzklasse und eine optionale Wiedergabe-Kapsel. RepoImmune weigert sich, einen geminten Kandidaten zu fördern, wenn die Evidenzkette unvollständig ist.

flowchart LR
  I[Issue / report] --> B[Buggy commit]
  B --> F[Failing behavior]
  F --> P[Fix PR / commit]
  P --> T[Regression test]
  T --> S[AST + symbol change]
  S --> V[Repository invariant]
  V --> C[Patch immunity check]

Die enthaltene vertikale Scheibe erkennt genau diese Rückentwicklung:

- cright[-right.shape[0]:, -right.shape[1]:] = right
+ cright[-right.shape[0]:, -right.shape[1]:] = 1

Sie meldet die präzise Zeile, erklärt, warum der All-Einsen-Block historisch falsch war, verlinkt das Issue/den PR/den Merge-Commit und nennt die mit dem Fix hinzugefügten pytest-Fälle.

CLI

repoimmune init .
repoimmune mine --repo owner/project
repoimmune check --diff HEAD~1
repoimmune recall "pagination returns duplicate rows"
repoimmune explain <behavior-card-id>
repoimmune replay <capsule-id>
repoimmune report --format html
repoimmune validate <card.json>

check gibt Markdown, JSON oder SARIF aus. mine speichert nur konservative Kandidaten; es ruft nie ein LLM auf und leitet keine Behavior Card allein aus einem Titel ab.

Agent- und CI-Integrationen

  • Die zusammengesetzte GitHub Action analysiert Pull-Request-Diffs schreibgeschützt und lädt SARIF/Markdown-Evidenz hoch.

  • Der stdio-MCP-Server stellt sechs strukturierte, schreibgeschützte Tools bereit: search_past_failures, explain_code_history, check_patch_against_memory, list_invariants_for_file, get_regression_test und replay_behavior_case.

  • Die offene Agent Skill fordert einen Agenten auf, sich vor riskanten Änderungen und erneut vor der Abschlussmeldung an die Historie zu erinnern. Sie gewährt keine Commit-, Push-, Merge- oder Test-Umgehungs-Befugnis.

  • Die statische Demo funktioniert ohne Anmeldung oder API-Schlüssel.

Evidenzklassen

Jedes Ergebnis ist explizit eine der folgenden:

  • verified: direkt wiedergegeben oder mechanisch mit primärer Code-/Test-Evidenz bestätigt.

  • externally_reported: vertrauenswürdiger Upstream- oder Benchmark-Ausführungsnachweis, hier nicht reproduziert.

  • heuristic: nützliches Kandidaten- oder Ähnlichkeitssignal, kein Beweis.

  • inconclusive: widersprüchliche oder unvollständige Evidenz.

Ein Ähnlichkeitswert wird nie als Beweis dargestellt. Ergebnisse zeigen immer den abgeglichenen Code und die Quell-Evidenz.

Warum sich das unterscheidet

  • Agent-/Chat-Gedächtnis: erinnert sich an Gespräche oder Repository-Fakten; RepoImmune minet Code-Historie und erstellt mechanische Prüfungen, die jede Agenten-Sitzung überdauern.

  • SWE-bench: bewertet, ob ein Agent ein Issue reparieren kann; RepoImmune wandelt gelöste Issues in dauerhafte Präventions-Assets um.

  • Statische Analyse: geht von allgemeinen Regeln aus; RepoImmune lernt repository-spezifische Invarianten aus den tatsächlichen Fehlern dieses Repositorys.

  • Testgenerierung: kann Tests erstellen; RepoImmune bewahrt die kausale Kette aus Meldung, fehlerhaftem/behobenem Code, Test und Invariante.

  • git blame: sagt, wer und wann; RepoImmune erklärt, warum Verhalten überleben muss, und kann es prüfen.

Siehe research-landscape.md für den evidenzgestützten Vergleich.

Sicherheitsmodell

Issuetext, PR-Kommentare, Code, Patches und Repository-Metadaten sind unvertrauenswürdige Daten. RepoImmune wertet sie nie als Anweisungen aus. Mining verwendet begrenzte HTTPS-Antworten; Refs und Repository-Namen werden validiert; Kapsel-Läufe verwenden festes argv ohne Shell, lehnen absolute Pfade und Symlinks ab und haben ein Zeitlimit. Installationsskripte oder Tests unbekannter Repositorys werden standardmäßig nie ausgeführt. Siehe SECURITY.md und docs/threat-model.md.

Aktueller Umfang und ehrliche Grenzen

Die Alpha unterstützt Python-AST- und pytest-Evidenz umfassend. TypeScript/TSX hat einen optionalen, fest gepinnten tree-sitter-Adapter für normalisierte Struktur- und Aufruf-Extraktion; JavaScript verwendet deterministische Token-Struktur, und Jest/Vitest können als Test-Evidenz erfasst werden. Ganzprogramm-interprozedurale Erreichbarkeit, automatische Upstream-Umgebungsrekonstruktion und breite Sprachunterstützung stehen auf der Roadmap. Datensatzskalen-Karten sind externally_reported, bis sie wiedergegeben werden; die gebündelte Astropy-Vertikalscheibe ist die einzige lokal verifizierte Verhaltenskapsel in v0.1.0.

Reproduzierbarkeit

python scripts/build_research_snapshot.py --limit 500 --cards 120
python scripts/run_experiments.py
pytest
coverage run -m pytest && coverage report
ruff check . && mypy src/repoimmune

Alle veröffentlichten Zahlen werden in research/results.json neu generiert; Klassifikationen und Einschränkungen bleiben erhalten, einschließlich erfolgloser oder unschlüssiger Fälle. Die Datenherkunft ist in DATA_SOURCES.md, THIRD_PARTY.md und research/data-card.md dokumentiert.

Der eingecheckte v0.1-Snapshot enthält 500 Kandidaten, 120 Behavior Cards, 12 Repositorys und 30 leichte strukturelle Kapseln. Bei deterministischen Mutationen erkannte er 120/120 exakte historische Rückentwicklungen und 120/120 geschützte Assertions-Löschungen; Refactorings mit gleichem Symbol und fester Form erzeugten 9/120 falsch-positive Ergebnisse (7,5 %). Titelbasierter Abruf erreichte Recall@5/MRR 1,0/1,0, aber dies ist ausdrücklich ein Plumbing-Test mit derselben Quelle. Unabhängige Mining-Präzision und kontrolliertes Agent-A/B bleiben unschlüssig.

Mitwirken

Lesen Sie CONTRIBUTING.md, die Roadmap und das Behavior-Card-Schema, bevor Sie einen neuen Miner oder eine neue Evidenzquelle vorschlagen. Apache-2.0-lizenziert.

中文说明:README.zh-CN.md

Available Tools

6 tools
check_patch_against_memoryC

check patch against memory

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

C2/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of disclosing behavioral traits. It only restates the tool name and gives no indication of side effects, return behavior, input expectations, or what 'memory' refers to.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is minimal but not meaningfully concise; it is under-specified. It provides no front-loaded useful content and reads as a placeholder rather than a structured tool definition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having no parameters and no output schema, the tool still needs context such as what 'patch' and 'memory' refer to and what the result indicates. The description is completely inadequate for an agent to select and invoke this tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters, so the baseline is 4. There is no parameter information missing or requiring compensation from the description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'check patch against memory' is a verbatim restatement of the tool name, providing no additional information about what the tool actually does. It is a tautology that fails to distinguish itself from the sibling tools such as search_past_failures or explain_code_history.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance whatsoever about when to use this tool versus alternatives. The description offers no context, prerequisites, or exclusions, leaving an agent to guess when this tool is appropriate.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

explain_code_historyD

explain code history

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

D1.8/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description adds zero behavioral information. It does not disclose whether this is a read-only operation, how it retrieves history, what output format to expect, or any side effects. The description carries the full burden for behavioral disclosure and fails entirely.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is brief, but brevity here is under-specification rather than efficient conciseness. A single phrase that repeats the tool name without elaboration does not earn credit for structure; it fails to convey any substantive information while appearing to be a complete definition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has no output schema, no annotations, and a descriptor that is a tautology. Given its sibling tools perform distinct historical/diagnostic functions, an agent cannot determine what inputs are needed, what results to expect, or how this differs from related operations. The definition is completely inadequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool accepts 0 parameters, so there is nothing for the description to clarify about argument meanings. Per the baseline for 0-parameter tools, this dimension is not penalized for missing parameter documentation. The description's lack of context does not affect this score.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'explain code history' is essentially a restatement of the tool name with a verb and resource, but it provides no actual explanation of what 'explain' means in this context or what 'code history' refers to. It is a tautology, not a clear statement of function.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus its siblings like search_past_failures or replay_behavior_case. No context, prerequisites, or situational cues are provided. The agent is left to guess which scenario would call for explaining code history.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_regression_testD

get regression test

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

D1.6/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must carry the full burden, but it reveals nothing about behavior, side effects, return values, or error cases. It is purely a label, not a behavioral disclosure.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The text is extremely short, but this is under-specification rather than useful conciseness. It says nothing beyond the tool name and provides no structured or front-loaded information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with no annotations and no output schema, the description is entirely inadequate. It does not explain what a regression test is, what the tool returns, or how it relates to the listed sibling tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool declares zero parameters, so the baseline is 4; the description adds no parameter meaning, but there are no parameters for it to explain. The permissive additionalProperties: true schema is not clarified, but that is a minor gap with no required inputs.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'get regression test' merely restates the tool name and adds no verb-resource detail beyond it. It does not distinguish this tool from siblings like search_past_failures or replay_behavior_case.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance about when to use this tool or when to prefer a sibling. No context, conditions, or alternatives are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

list_invariants_for_fileC

list invariants for file

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

C2.3/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description carries the full burden of behavioral disclosure, but it only repeats the action 'list' and the resource 'file'. It does not mention side effects (likely read-only), error conditions, ordering, filtering, or what data is actually returned.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

One short sentence is concise, but this is under-specification rather than efficient brevity. The description omits essential details that an agent needs, so it does not earn credit for structure.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has no output schema and no annotations, so the description must provide nearly all context. It fails to state how the file is selected, what invariants look like, or what a successful call returns, leaving the agent with only the tool name as guidance.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There are zero declared parameters, so the description cannot add parameter-level detail beyond the schema. The 100% schema coverage and empty parameter list make the missing specification less harmful, though the description does not explain how 'file' is supplied.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'list invariants for file' is a near-verbatim restatement of the tool name. It identifies the action and resource but does not clarify what 'invariants' means in this context or how it differs from the sibling tools, making it tautological rather than informative.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives no guidance about when to use this tool instead of alternatives such as search_past_failures or check_patch_against_memory. There is no context, prerequisite, or exclusion information, leaving the agent to guess.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

replay_behavior_caseD

replay behavior case

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

D1.6/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It fails to state side effects, permissions, return values, or any observable behavior beyond the vague verb 'replay'. There is nothing here to inform an agent about what will happen when the tool is invoked.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three words is technically concise, but this is under-specification rather than effective structure. The description has no front-loaded action statement, no scoping, and no differentiation—it reads as a placeholder, not a deliberate, minimal definition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no annotations, no output schema, no parameter details, and only sibling tool names for context, the description is the sole source of guidance and it provides none. An agent cannot understand what a 'behavior case' is, what replaying entails, or what result to expect.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There are zero parameters, so the description has no parameter details to explain, and the baseline is 4. However, the schema allows additionalProperties: true, meaning arbitrary input could be passed, and the description offers no hint about what properties might be relevant. This is a minor gap given no defined parameters exist.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description is literally the tool name: 'replay behavior case'. It restates the name without defining the action, the resource, or the domain meaning of 'behavior case'. An agent cannot distinguish it from siblings like search_past_failures or get_regression_test.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance about when to use this tool versus alternatives, no context, and no examples. The description contains only a phrase with no actionable direction, so an agent receives zero assistance in selecting it correctly.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

search_past_failuresC

search past failures

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

C2/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It does not state whether this is a read-only query, what data it covers, what it returns, or any side effects or limitations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short but not appropriately concise; it is under-specified. It consists only of a tautological phrase that adds no actionable information for an agent.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no annotations, no output schema, and no usage guidance, the description is completely inadequate for an agent to decide when to invoke this tool or what behavior to expect. The tool cannot be used correctly based on the provided definition alone.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters for the agent to interprethysics, which matches the baseline of 4. No parameter documentation is necessary since the input schema is effectively unrestricted and empty.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose2/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'search past failures' merely restates the tool name, providing no meaningful elaboration on what constitutes a 'past failure' or what the search returns. It also offers no differentiation from sibling tools like get_regression_test or replay_behavior_case.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description gives no guidance on when to use this tool versus the sibling alternatives. There is no mention of intended scenarios, prerequisites, or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 6 tool updatesv0.1.0
    • First observedcheck_patch_against_memory
    • First observedexplain_code_history
    • First observedget_regression_test
    • First observedlist_invariants_for_file
    • First observedreplay_behavior_case
    • First observedsearch_past_failures

TDQS

C2.6/5.0

Scored across 6 tools

Disambiguation4/5

Each tool targets a distinct action and resource, but some functional overlap exists: 'search_past_failures' and 'get_regression_test' both relate to historical failures, and 'explain_code_history' and 'check_patch_against_memory' both deal with stored repository memory. The descriptions are terse but generally enough to guide selection.

Naming Consistency5/5

All tool names follow a consistent lowercase snake_case verb-first pattern: search_, explain_, check_, list_, get_, replay_. The naming style is uniform and predictable across the entire set.

Tool Count5/5

Six tools is well-scoped for a specialized repository memory/invariant server. Each tool has a clear purpose, and the count feels neither thin nor bloated for the apparent domain.

Completeness4/5

The surface covers the main read/replay workflow: searching failures, explaining history, checking patches, listing invariants, and replaying test cases. The only notable gap is the lack of any tool to record or update memory/invariants, but this may be intentional if ingestion happens outside the server.

Maintenance

ActivitySlowing
ResponsivenessNo issues

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