anthropics/claude-agent-sdk-python

Stars: 8.1k
Forks: 1.3k
Open beginner issues: 0
Indexed issues: 188
Avg merge: 2d 31m
Merged PRs (30d): 1

Dominant language: Python
License: MIT
Last GitHub push: Sep 12, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

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188 issues indexed so far

Per-message trace-context propagation for persistent sessions — TRACEPARENT is injected only at connect(), so all MCP/tool spans attribute to the first turn's trace Open

documentation enhancement

anthropics/claude-agent-sdk-python#1126 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
ResultMessage is being sent while background agent is still working and turn is finished Open

bug

anthropics/claude-agent-sdk-python#1138 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
Add more presets to the system prompt Open

anthropics/claude-agent-sdk-python#1140 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
Feature request: opt out of the bundled CLI (slim install + force external `claude`) Open

anthropics/claude-agent-sdk-python#1144 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
ToolSearch from deferred tool loading is not blocked by disallowed_tools, and costs ~10x on single-tool sessions Open

anthropics/claude-agent-sdk-python#1147 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
`sandbox.seccomp.applyPath` in settings.json is ignored — embedded apply-seccomp is always used (CLI 2.1.220) Open

anthropics/claude-agent-sdk-python#1151 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
ClaudeSDKClient.interrupt() is ignored silently when called immediately after query() Open

anthropics/claude-agent-sdk-python#1153 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
Ollama models emit tool calls as plain text instead of ToolUseBlock when routed through the SDK/CLI (works fine against Ollama's raw API) Open

anthropics/claude-agent-sdk-python#1154 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
query() returns is_error with subtype="success" and api_error_status=400; --print succeeds with identical binary and credentials Open

anthropics/claude-agent-sdk-python#1156 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
get_context_usage() makes uncached API calls that are invisible to the message stream Open

anthropics/claude-agent-sdk-python#1159 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Long project paths can resolve to the wrong session directory Open

anthropics/claude-agent-sdk-python#1160 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
ClaudeSDKClient can leak transports on double connect and pre-Query failures Open

anthropics/claude-agent-sdk-python#1161 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
CLI version check timeout can hang indefinitely while waiting for termination Open

anthropics/claude-agent-sdk-python#1162 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
SessionStore summary fast path paginates before filtering and can skip sessions Open

anthropics/claude-agent-sdk-python#1163 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
delete_session can report success while leaving subagent transcripts behind Open

anthropics/claude-agent-sdk-python#1164 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
max_buffer_size and import byte limits count characters instead of UTF-8 bytes Open

anthropics/claude-agent-sdk-python#1165 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
MCP tool schema generation loses Optional, Literal, mapping, and unsupported-type semantics Open

anthropics/claude-agent-sdk-python#1166 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
list_sessions_from_store exposes invalid session IDs returned by adapters Open

anthropics/claude-agent-sdk-python#1167 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
InMemorySessionStore composite string keys can collide across logical sessions Open

anthropics/claude-agent-sdk-python#1168 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
query() documentation incorrectly promises send-all-then-receive streaming semantics Open

anthropics/claude-agent-sdk-python#1169 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
claude-sonnet-5 overreporting cost Open

anthropics/claude-agent-sdk-python#1182 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Bedrock: AU regions (ap-southeast-2/4) only probe & suggest `apac.*` profiles — no `au.*` branch, steering AU data-residency users to the wrong profile family Open

anthropics/claude-agent-sdk-python#1189 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
stdin closes after a delegated task settles before Result, dropping a later continuation control response Open

anthropics/claude-agent-sdk-python#1190 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 13, 2026
rename_session() and tag_session() are silently lost once the session grows: list_sessions() only scans the first and last 64 KiB Open

bug

anthropics/claude-agent-sdk-python#1191 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
A single JSONL record larger than the 64 KiB lite window silently drops first_prompt and cwd, and makes list_sessions_from_store() disagree with itself Open

bug

anthropics/claude-agent-sdk-python#1200 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Claude Code SDK permission system is a complete mess Open

documentation enhancement

anthropics/claude-agent-sdk-python#1220 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
SDK MCP tools unavailable when resuming with empty streaming input (regression in 0.2.140) Open

bug

anthropics/claude-agent-sdk-python#1226 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
to_openeval()/from_openeval(): portable eval dataset conversion for ResultMessage / AssistantMessage Open

enhancement

anthropics/claude-agent-sdk-python#1231 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Bug: claude-agent-sdk 0.2.144 is a partial publish Open

bug

anthropics/claude-agent-sdk-python#1234 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Example: use HOL Guard from PreToolUse for Bash command safety Open

documentation enhancement

anthropics/claude-agent-sdk-python#1235 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Claude Agent SDK import hangs under `tsx watch` + `concurrently` on Windows Open

invalid question

anthropics/claude-agent-sdk-python#1239 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Multi-turn headless resume falls back to the system+tools cache floor past ~82k tokens (CLI 2.1.228+, Bedrock) — same fingerprint as #974 / #1120 Open

bug

anthropics/claude-agent-sdk-python#1241 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
create_sdk_mcp_server tools cannot opt into strict tool use: tools/list reconstruction drops the field Open

enhancement

anthropics/claude-agent-sdk-python#1243 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Effort fallback (xhigh -> high off Opus 4.7) is silent and unobservable: expose effective effort or a strict mode Open

enhancement

anthropics/claude-agent-sdk-python#1244 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Use of SDK is governed by Anthropic's Commercial terms ? but it also says MIT license in github. Open

documentation duplicate question

anthropics/claude-agent-sdk-python#1245 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 13, 2026
Bedrock logs are not capturing trace info even when requests are blocked by the configured Guardrail. Open

bug

anthropics/claude-agent-sdk-python#1252 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
0.2.153 release is blocked by the pre-flight PyPI quota Open

bug help wanted

anthropics/claude-agent-sdk-python#1254 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026
`allowed_tools=None` raises `TypeError` deep in the transport instead of being treated as unset Open

bug

anthropics/claude-agent-sdk-python#1255 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 13, 2026

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