$ show tmc/langchaingo

[account ↗] [repo ↗] APPLICATION ★ 9634 1138 ● maintained (last update 9 months ago)

── AI DEEP ANALYSIS ──

reviewed by: deepseek/deepseek-v4-flash

langchaingo is a Go port of the LangChain framework, providing a modular, composable library for building LLM-powered applications. In production, it serves as an abstraction layer over dozens of LLM providers (OpenAI, Anthropic, Google AI, AWS Bedrock, Ollama, HuggingFace, etc.), vector stores (Chroma, Pinecone, Weaviate, pgvector, Redis, Qdrant, and many more), and supporting components such as chains, agents, memory, tools, document loaders, and prompt templates. The architecture is a monorepo library: users import packages and compose interfaces (`Model`, `Chain`, `VectorStore`, `Agent`, `Memory`) to orchestrate LLM workflows. Key entry points are provider constructors (e.g., `openai.New()`) and composition functions (e.g., `chains.NewLLMChain()`, `agents.NewExecutor()`). The library relies on many external SDKs and databases, creating a large dependency surface. It includes a custom HTTP record/replay testing infrastructure (`httprr`) for deterministic testing of API calls. The codebase is actively maintained with recent commits and a large community, but carries medium technical drift due to some outdated dependencies and deprecated API patterns.

── METRICS ──

RATING7.6/10

QUALITY7.5/10

MAINTENANCEmaintained

DRIFTmedium

CONTRIBUTORS185

VELOCITY0.25

OPEN ISSUES410

CLOSED ISSUES212

LAST COMMIT9 months ago

── TAGS ──

#llm-framework #go-langchain #agent-orchestration #rag #vector-stores #prompt-engineering #llm-integration #test-utilities #ai #go #golang #langchain

── GITHUB TOPICS ──

ai go golang langchain

── DEPENDENCY GRAPH ──

github.com/google/uuid (go) v1.6.0

github.com/stretchr/testify (go) v1.10.0

github.com/testcontainers/testcontainers-go (go) v0.38.0

github.com/testcontainers/testcontainers-go/modules/chroma (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/milvus (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/mongodb (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/mysql (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/opensearch (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/postgres (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/redis (go) v0.37.0

github.com/testcontainers/testcontainers-go/modules/weaviate (go) v0.37.0

github.com/IBM/watsonx-go (go) v1.0.0

github.com/cohere-ai/tokenizer (go) v1.1.2

github.com/gage-technologies/mistral-go (go) v1.1.0

github.com/google/generative-ai-go (go) v0.15.1

github.com/pkoukk/tiktoken-go (go) v0.1.6

github.com/amikos-tech/chroma-go (go) v0.1.4

github.com/milvus-io/milvus-sdk-go/v2 (go) v2.4.0

github.com/opensearch-project/opensearch-go (go) v1.1.0

github.com/pgvector/pgvector-go (go) v0.1.1

github.com/pinecone-io/go-pinecone (go) v0.4.1

github.com/redis/rueidis (go) v1.0.34

github.com/weaviate/weaviate (go) v1.29.0

github.com/weaviate/weaviate-go-client/v5 (go) v5.0.2

go.mongodb.org/mongo-driver (go) v1.14.0

go.mongodb.org/mongo-driver/v2 (go) v2.0.0

cloud.google.com/go/aiplatform (go) v1.69.0

cloud.google.com/go/vertexai (go) v0.12.0

github.com/aws/aws-sdk-go-v2 (go) v1.36.3

github.com/aws/aws-sdk-go-v2/config (go) v1.29.4

github.com/aws/aws-sdk-go-v2/service/bedrockagent (go) v1.40.0

github.com/aws/aws-sdk-go-v2/service/bedrockagentruntime (go) v1.41.0

github.com/aws/aws-sdk-go-v2/service/bedrockruntime (go) v1.24.3

github.com/aws/aws-sdk-go-v2/service/s3 (go) v1.78.2

github.com/aws/smithy-go (go) v1.22.2

golang.org/x/oauth2 (go) v0.30.0

google.golang.org/api (go) v0.218.0

google.golang.org/grpc (go) v1.70.0

google.golang.org/protobuf (go) v1.36.3

github.com/AssemblyAI/assemblyai-go-sdk (go) v1.3.0

github.com/nlpodyssey/cybertron (go) v0.2.1

cloud.google.com/go/alloydbconn (go) v1.13.2

cloud.google.com/go/cloudsqlconn (go) v1.14.1

github.com/go-sql-driver/mysql (go) v1.8.1

github.com/jackc/pgx/v5 (go) v5.7.2

github.com/mattn/go-sqlite3 (go) v1.14.17

github.com/PuerkitoBio/goquery (go) v1.8.1

github.com/gocolly/colly (go) v1.2.0

github.com/ledongthuc/pdf (go) v0.0.0-20220302134840-0c2507a12d80

github.com/microcosm-cc/bluemonday (go) v1.0.26

gitlab.com/golang-commonmark/markdown (go) v0.0.0-20211110145824-bf3e522c626a

github.com/getzep/zep-go (go) v1.0.4

github.com/metaphorsystems/metaphor-go (go) v0.0.0-20230816231421-43794c04824e

github.com/Code-Hex/go-generics-cache (go) v1.3.1

github.com/Masterminds/sprig/v3 (go) v3.2.3

github.com/go-openapi/strfmt (go) v0.23.0

github.com/google/go-cmp (go) v0.7.0

github.com/nikolalohinski/gonja (go) v1.5.3

github.com/zeebo/blake3 (go) v0.2.4

golang.org/x/sync (go) v0.16.0

golang.org/x/tools (go) v0.35.0

sigs.k8s.io/yaml (go) v1.3.0

cloud.google.com/go (go) v0.116.0

cloud.google.com/go/ai (go) v0.7.0

cloud.google.com/go/alloydb (go) v1.14.0

cloud.google.com/go/auth (go) v0.14.0

cloud.google.com/go/auth/oauth2adapt (go) v0.2.7

cloud.google.com/go/compute/metadata (go) v0.6.0

cloud.google.com/go/iam (go) v1.2.2

cloud.google.com/go/longrunning (go) v0.6.2

github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream (go) v1.6.10

github.com/aws/aws-sdk-go-v2/credentials (go) v1.17.57

github.com/aws/aws-sdk-go-v2/feature/ec2/imds (go) v1.16.27

github.com/aws/aws-sdk-go-v2/internal/configsources (go) v1.3.34

github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 (go) v2.6.34

github.com/aws/aws-sdk-go-v2/internal/ini (go) v1.8.2

github.com/aws/aws-sdk-go-v2/internal/v4a (go) v1.3.34

github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding (go) v1.12.3

github.com/aws/aws-sdk-go-v2/service/internal/checksum (go) v1.7.0

github.com/aws/aws-sdk-go-v2/service/internal/presigned-url (go) v1.12.15

github.com/aws/aws-sdk-go-v2/service/internal/s3shared (go) v1.18.15

github.com/aws/aws-sdk-go-v2/service/sso (go) v1.24.14

github.com/aws/aws-sdk-go-v2/service/ssooidc (go) v1.28.13

github.com/aws/aws-sdk-go-v2/service/sts (go) v1.33.12

github.com/google/s2a-go (go) v0.1.9

github.com/googleapis/enterprise-certificate-proxy (go) v0.3.4

github.com/googleapis/gax-go/v2 (go) v2.14.1

go.opentelemetry.io/auto/sdk (go) v1.1.0

go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc (go) v0.54.0

go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp (go) v0.61.0

go.opentelemetry.io/otel (go) v1.36.0

go.opentelemetry.io/otel/metric (go) v1.36.0

go.opentelemetry.io/otel/trace (go) v1.36.0

google.golang.org/appengine (go) v1.6.8

google.golang.org/genproto (go) v0.0.0-20241118233622-e639e219e697

google.golang.org/genproto/googleapis/api (go) v0.0.0-20241209162323-e6fa225c2576

google.golang.org/genproto/googleapis/rpc (go) v0.0.0-20250122153221-138b5a5a4fd4

github.com/nlpodyssey/gopickle (go) v0.2.0

github.com/nlpodyssey/gotokenizers (go) v0.2.0

github.com/nlpodyssey/spago (go) v1.1.0

── FILE BREAKDOWN ──

Files by Type (count)

680

Other (.httprr)

107

Markdown

105

Other (.mod)

Other (.sum)

Other (.gz)

Other (.mdx)

YAML

Other (.png)

Text

JavaScript

Other (no ext)

Files by Type (size)

Other (.httprr)

8MB

2MB

Other (.gz)

2MB

Other (.sum)

1015KB

Other (.png)

880KB

YAML

512KB

Markdown

364KB

Other (.mod)

115KB

Other (.jpg)

60KB

Other (.mdx)

58KB

Other (.pdf)

19KB

JavaScript

18KB

── KEY FINDINGS: REUSABLE CODE ──

The LLM identified 2 files worth highlighting for reuse:

A self-contained HTTP record/replay library that wraps `http.RoundTripper` to intercept, record, and replay HTTP interactions during tests. It allows deterministic testing of external API calls without requiring live credentials or network access. The design is clean: it captures requests and responses as JSON, normalizes them (scrubbing headers, body formatting), and can replay them on subsequent test runs. This pattern is directly reusable in any Go project that tests against external HTTP APIs and demonstrates careful engineering for test infrastructure.

file: internal/httprr/rr.go ↗ | tags: #http-record-replay #testing #deterministic

A sophisticated markdown-aware text splitter that respects document structure (headers, tables, code blocks, lists) when chunking documents for RAG pipelines. It is isolated from the rest of the codebase (depends only on standard interfaces) and solves a non-trivial problem: preserving semantic boundaries while respecting chunk size limits. The implementation shows careful handling of markdown edge cases and can be extracted into a standalone library for any Go project needing structured text splitting.

file: textsplitter/markdown_splitter.go ↗ | tags: #text-splitting #markdown #rag #chunking

── HISTORY ──

Last analyzed: 2026-08-25 23:04:00.563232

Next check: 2026-09-24 23:04:00.561290