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gchq

35 indexed repositories · View on GitHub

CyberChef
The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

JavaScript · 36373 stars
BoilingFrogs
GCHQ's internal Boiling Frogs research paper on software development and organisational change in the face of disruption #boilingfrogs

630 stars
stroom
Stroom is a highly scalable data storage, processing and analysis platform.

Java · 489 stars
CyberChef-server
A server providing RESTful access to CyberChef

JavaScript · 181 stars
sleeper
A cloud-native, serverless, scalable, cheap key-value store

Java · 107 stars
Bailo
Managing the lifecycle of machine learning to support scalability, impact, collaboration, compliance and sharing.

TypeScript · 96 stars
annchor
Fast k-NN graph construction for slow metrics

Python · 63 stars
nix-bootstrap
Easily generate reproducible infrastructure

Haskell · 43 stars
coreax
A library for coreset algorithms, written in JAX for fast execution and GPU support.

Python · 43 stars
stroom-docs
Documentation for Stroom and associated projects

Shell · 31 stars
MagmaCore
Magma Core is a collection of Java Classes and utilities to enable HQDM objects and patterns to be created and consumed as RDF Linked Data.

Java · 30 stars
LD-Explorer
LD-Explorer is the missing tool for exploring, federating and querying linked data resources directly from the browser

TypeScript · 27 stars
event-logging-schema
Event Logging is an XML Schema for describing the auditable events generated by computer systems, hardware devices and access control sys...

Shell · 25 stars
event-logging
A Java JAXB library for generating events conforming to the Event Logging XML Schema

Java · 18 stars
ConcourseTools
A Python package for easily implementing Concourse resource types.

Python · 17 stars
stroom-visualisations-dev
A set of D3 data visualisations for use in Stroom dashboards or other applications

JavaScript · 14 stars
iris-worm
IRIS Worm is a real-time data graphing component.

JavaScript · 12 stars
stroom-content
Content for Stroom such as XML Schemas, translations, pipelines and dashboards

XSLT · 9 stars
gchq-data-quality
A lightweight package to conduct data quality measurements in Pandas and Spark dataframes

Python · 7 stars
Vanguard

Python · 7 stars
15 more repositories live on View on GitHub

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Change `LuceneContentIndex` to make use of the doc audit log
Open
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Difficulty 5/5 Over a week Newbie friendliness 30/100

gchq/stroom#6015 · Opened Nov 11, 2026

Maintainers usually reply within 1 day
EMR executor market type is not validated and any value other than ON_DEMAND is treated as SPOT
Open
- Is something wrong?
bug bulk-import-module

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

gchq/sleeper#8633 · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Garbage collection fails for a whole table if a filename doesn't contain .parquet
Open
- Is something wrong?
bug needs-refinement under-discussion

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

gchq/sleeper#8632 · 1 comment · Opened Nov 10, 2026

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Garbage collector ignores the per-invocation file limit when deletions fail
Open
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bug needs-refinement under-discussion

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

gchq/sleeper#8631 · Opened Nov 10, 2026

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Dry run option for compaction creation scripts
Open
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clients-module enhancement

Difficulty 3/5 1-2 days Newbie friendliness 70/100

gchq/sleeper#8630 · Opened Nov 10, 2026

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Intermediate state store snapshots when snapshot creation takes too long
Open
- Is something wrong?
enhancement statestore-module

Difficulty 4/5 3-5 days Newbie friendliness 65/100

gchq/sleeper#8628 · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Scripts for exporting partitions from a table and reinitialising a table from those exported partitions
Open
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enhancement scripts

Difficulty 3/5 1-2 days Newbie friendliness 54/100

gchq/sleeper#8625 · Opened Nov 10, 2026

Maintainers usually reply within 1 day
Report on compaction jobs currently assigned in state store
Open
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enhancement size:medium

Difficulty 4/5 3-5 days Newbie friendliness 48/100

gchq/sleeper#8623 · Opened Nov 10, 2026

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Compaction job status report can run out of memory
Open
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enhancement needs-refinement parent-issue

Difficulty 3/5 1-2 days Newbie friendliness 67/100

gchq/sleeper#8622 · Opened Nov 10, 2026

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State store commit failures in lambda are ignored
Open
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bug needs-refinement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

gchq/sleeper#8618 · 1 reaction · Opened Nov 9, 2026

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XSLT pool can keep serving a stale import after the imported XSLT is saved
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Difficulty 4/5 3-5 days Newbie friendliness 55/100

gchq/stroom#6007 · Opened Nov 9, 2026

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DataFusion reads of a data file may mix two versions of the file if it is overwritten during the read
Open
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needs-refinement under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 55/100

gchq/sleeper#8617 · 1 comment · Opened Nov 9, 2026

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Distinguish state store validation failures from other state store exceptions
Open
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needs-refinement under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 54/100

gchq/sleeper#8616 · 1 comment · 1 reaction · Opened Nov 9, 2026

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Proposal for documentation restructure
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Difficulty 5/5 Over a week Newbie friendliness 25/100

gchq/stroom-docs#148 · 1 comment · Opened Nov 6, 2026
Improvement to assertion on AutoStopEcsTaskST
Open
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system-test-module

Difficulty 3/5 1-2 days Newbie friendliness 48/100

gchq/sleeper#8590 · Opened Nov 5, 2026

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Partition splitting lambdas report batch item failures but the event source mapping ignores them
Open
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bug

Difficulty 3/5 1-2 days Newbie friendliness 76/100

gchq/sleeper#8589 · 1 reaction · Opened Nov 5, 2026

Maintainers usually reply within 1 day
StroomQL cannot influence the returned String Truncation limits like Dashboard Tables
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Difficulty 3/5 1-2 days Newbie friendliness 30/100

gchq/stroom#5982 · Opened Nov 4, 2026

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Improve data receipt errors
Open
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Difficulty 4/5 3-5 days Newbie friendliness 53/100

gchq/stroom#5980 · Opened Nov 3, 2026

Maintainers usually reply within 1 day
Saving an older pipeline causes an error
Open
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Difficulty 3/5 Half a day Newbie friendliness 48/100

gchq/stroom#5935 · Opened Oct 29, 2026

Maintainers usually reply within 1 day
Cargo audit found vulnerabilities in zstd
Open
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on-hold

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

gchq/sleeper#8540 · Opened Oct 28, 2026

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Review reserved concurrency for lambdas processing SQS messages
Open
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needs-refinement under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 45/100

gchq/sleeper#8532 · Opened Oct 28, 2026

Maintainers usually reply within 1 day
Add Stroom AI documentation
Open
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Difficulty 5/5 Over a week Newbie friendliness 20/100

gchq/stroom-docs#146 · Opened Oct 28, 2026
floorTime and roundTime give the wrong buckets for times before 1970
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Difficulty 2/5 1-3 hours Newbie friendliness 63/100

gchq/stroom#5917 · Opened Oct 27, 2026

Maintainers usually reply within 1 day
LuceneShardSearcher creates a new StoredFields for every hit
Open
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Difficulty 2/5 1-3 hours Newbie friendliness 68/100

gchq/stroom#5916 · Opened Oct 27, 2026

Maintainers usually reply within 1 day
NOT { x != 5 } matches nothing on Lucene
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Difficulty 2/5 1-3 hours Newbie friendliness 63/100

gchq/stroom#5915 · Opened Oct 27, 2026

Maintainers usually reply within 1 day
IS_NULL/IS_NOT_NULL are silently dropped by the Elasticsearch, Lucene and Solr query builders
Open
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Difficulty 3/5 1-2 days Newbie friendliness 66/100

gchq/stroom#5914 · Opened Oct 27, 2026

Maintainers usually reply within 1 day
Leaderboards: compare models by the performance metrics in their model cards
Open
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enhancement triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

gchq/Bailo#4481 · 1 comment · Opened Oct 23, 2026

Maintainers usually reply within 1 day
Log page not working after error
May be free again A pull request for this issue was closed without being merged. Open
- Is something wrong?
bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

gchq/LD-Explorer#286 · 1 comment · Opened Oct 23, 2026
EKS bulk import state machine fails when it can't find the Spark logs, even if the bulk import succeeded
Open
- Is something wrong?
bug size:medium

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

gchq/sleeper#8488 · Opened Oct 21, 2026

Maintainers usually reply within 1 day
Transaction log follower can trigger after a transaction was deleted
Open
- Is something wrong?
bug under-discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

gchq/sleeper#8485 · Opened Oct 21, 2026

Maintainers usually reply within 1 day
Add MCP and tool calling support to Ask Stroom AI
Open
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Difficulty 5/5 Over a week Newbie friendliness 12/100

gchq/stroom#5848 · Opened Oct 14, 2026

Maintainers usually reply within 1 day
Q4 '26 analysis next
Open
- Is something wrong?
parent-issue

Difficulty 5/5 Over a week Newbie friendliness 8/100

gchq/sleeper#8443 · Opened Oct 14, 2026

Maintainers usually reply within 1 day
No indication in stroom that jobs are disabled
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 55/100

gchq/stroom#5847 · Opened Oct 13, 2026

Maintainers usually reply within 1 day
Q4 '26 analysis
Open
- Is something wrong?
parent-issue

Difficulty 5/5 Over a week Newbie friendliness 20/100

gchq/sleeper#8431 · Opened Oct 12, 2026

Maintainers usually reply within 1 day
Review exception handling in ingest/bulk import
Open
- Is something wrong?
bulk-import-module ingest-module

Difficulty 4/5 1-2 days Newbie friendliness 45/100

gchq/sleeper#8430 · Opened Oct 12, 2026

Maintainers usually reply within 1 day
Compaction task retries a job whose input files no longer exist
Open
- Is something wrong?
bug needs-refinement under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 35/100

gchq/sleeper#8418 · 4 comments · Opened Oct 9, 2026

Maintainers usually reply within 1 day
State store commits do not recover after a temporary failure, and redrive may produce unexpected behaviour
Open
- Is something wrong?
bug needs-refinement under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 25/100

gchq/sleeper#8364 · 1 comment · Opened Oct 8, 2026

Maintainers usually reply within 1 day
Enterprise Floor Mapping
Open
- Is something wrong?
HPE

Difficulty 5/5 Over a week Newbie friendliness 35/100

gchq/stroom#5834 · Opened Oct 7, 2026

Maintainers usually reply within 1 day
Review transaction log follower handling of failed entries
Open
- Is something wrong?
size:large statestore-module under-discussion

gchq/sleeper#8348 · 1 comment · Opened Oct 7, 2026

Maintainers usually reply within 1 day
STROOM memory optimisations
Open
- Is something wrong?
tech debt

Difficulty 4/5 3-5 days Newbie friendliness 32/100

gchq/Bailo#4343 · Opened Oct 5, 2026

Maintainers usually reply within 1 day
Standardise on subquery or sub-query
May be free again @gaffer01 claimed this 43 days ago, and no pull request is open. Open
- Is something wrong?
enhancement

gchq/sleeper#8293 · 1 assignee · Opened Sep 30, 2026

Maintainers usually reply within 1 day
JWT Sign/Verify throws `TypeError: Right-hand side of 'instanceof' is not an object` in browser build (crypto-browserify doesn't export `KeyObject`)
Open
- Is something wrong?
Difficulty 3/5 1-2 days Newbie friendliness 72/100

gchq/CyberChef#2860 · 1 comment · Opened Sep 30, 2026

Maintainers usually reply within 1 day
Introduce a job tracker query object shared for compaction and ingest
Open
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Difficulty 5/5 Over a week Newbie friendliness 35/100

gchq/sleeper#8259 · Opened Sep 28, 2026

Maintainers usually reply within 1 day
Remove use of Mockito in job tracker tests
Open
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Difficulty 2/5 1-3 hours Newbie friendliness 78/100

gchq/sleeper#8258 · Opened Sep 28, 2026

Maintainers usually reply within 1 day
Web socket queries can fail due to transient API Gateway problems
Open
- Is something wrong?
bug under-discussion

Difficulty 3/5 1-2 days Newbie friendliness 72/100

gchq/sleeper#8257 · Opened Sep 28, 2026

Maintainers usually reply within 1 day
Set tags for SystemTestInfrastructureCdkApp
Open
- Is something wrong?
build-pipeline

Difficulty 3/5 1-2 days Newbie friendliness 64/100

gchq/sleeper#8246 · Opened Sep 25, 2026

Maintainers usually reply within 1 day
Configure test coverage reporting in Maven
Open
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build-pipeline

Difficulty 3/5 1-2 days Newbie friendliness 55/100

gchq/sleeper#8244 · Opened Sep 25, 2026

Maintainers usually reply within 1 day
Queries can fail in the AWS SQS/lambda integration poller, and are never retried
Open
- Is something wrong?
bug parent-issue under-discussion

Difficulty 4/5 3-5 days Newbie friendliness 45/100

gchq/sleeper#8236 · Opened Sep 23, 2026

Maintainers usually reply within 1 day
Feature request: Eliminate deprecated dependencies
Open
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feature

Difficulty 4/5 3-5 days Newbie friendliness 52/100

gchq/CyberChef#2846 · Opened Sep 22, 2026

Maintainers usually reply within 1 day
Add integer index to nested data field names
Open
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question

Difficulty 4/5 3-5 days Newbie friendliness 45/100

gchq/gchq-data-quality#47 · Opened Sep 22, 2026

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