Evidaxis

Letta

repo
Agent Frameworks · n = 16 · letta-ai/letta
2 of 3 axes measurable · conf medium
convergence gate
Convergence gate: Gate: computed weekly across the cohort; no convergence event this week Development velocity: measured × Citation momentum: measured × Direct-dependents momentum (deps.dev): not measurable ∅
gate
0 of 3 axes

Gate: computed weekly across the cohort; no convergence event this week

Gate: computed weekly across the cohort; no convergence event this week
position in cohort distribution one of 16 in cohort
percentile 7 within cohort p25 p50 p75 p0 p100
percentile
p7
momentum averages present-axis z-scores; two- and three-axis scores are not strictly comparable
velocity z
velocity z gaugevelocity z+0.17 within cohort, log-slope +0.005/wk.0+0.17
velocity z
+0.17 σ
slope
+0.005/wk
log-slope +0.005/wk
citation z
citation z gaugecitation z-2.15 within cohort, log-slope +0.723/yr.0-2.15
citation z
-2.15 σ
slope
+0.723/yr
log-slope +0.723/yr
direct-dependents z Direct-dependents axis: no admitted own package; not measured.
cohort
16
systems measured
weekly commits
0.6
Development velocity axis: measured.
total citations
54
Citation axis: measured.
momentum
37.6
percentile p7
commit heatmap, last 26 weeks0.6/wk
weekly commits, 26 weeks26 weeks of commits, peak 2 in a week, 7 active weeks, 10 total.week 1: 0 commitsweek 2: 0 commitsweek 3: 0 commitsweek 4: 1 commitsweek 5: 0 commitsweek 6: 0 commitsweek 7: 0 commitsweek 8: 0 commitsweek 9: 0 commitsweek 10: 1 commitsweek 11: 1 commitsweek 12: 0 commitsweek 13: 0 commitsweek 14: 0 commitsweek 15: 2 commitsweek 16: 0 commitsweek 17: 2 commitsweek 18: 0 commitsweek 19: 1 commitsweek 20: 0 commitsweek 21: 2 commitsweek 22: 0 commitsweek 23: 0 commitsweek 24: 0 commitsweek 25: 0 commitsweek 26: 0 commits
weeks
26
peak/wk
2
active
7
total
10
citations by yeartotal 54
Citations by year2023: 3, 2024: 12, 2025: 16, 2026: 23. Total 54 citations.2023: 3 citations2332024: 12 citations24122025: 16 citations25162026: 23 citations2623
total cites
54
years
4
latest yr
23
Daily dependents count (unscored) 1 dependents 1 direct · pypi/letta · deps.dev · the scored m4 axis uses weekly partitions

Letta holds an Evidaxis momentum score of 37.6 of 100 on methodology m4, snapshot 2026-10-10, measured within the Agent Frameworks cohort (n = 16). Axis coverage: 2 of 3 axes measurable. Gate: computed weekly across the cohort; no convergence event this week

Derived signals

second-order reads, computed from the published series

Three signals ship when the commit series is statistically sufficient; the rest are held in a reserved state until the data supports them. A reserved signal shows its reason, never a fabricated number. How these are computed.

recency-weighted swing trailing 13-week vs prior 39-week log-slope ratio +0.32, regime recent slope below prior window. prior slope -0.144, recent slope -0.046 per week. -0.144prior 39w-0.046recent 13w+0.32×
swing
+0.32×
regime
recent slope below prior window
windows
13w vs 39w
snapshot 1 of 1 · · m4
commit-axis Sharpe log-linear slope over residual std, value -0.112 with 95% CI -0.162 to -0.062, 50 degrees of freedom. CI spans zero.0-0.11295% CI -0.162, -0.062-0.162-0.062
sharpe
-0.112
95% ci
-0.162, -0.062
dof
50
snapshot 1 of 1 · · m4
commit changepoint52 weekly commit points. No significant changepoint detected (|delta slope| within the noise floor).no significant changepoint
changepoint
none detected
snapshot 1 of 1 · · m4
code-leads-citation lag reserved

reserved: citation series too short / axis absent for cross-correlation

status
reserved
value
insufficient data
snapshot 1 of 1 · · m4
axis alpha vs cohort reserved

reserved: cohort N too small for regression (power ~0)

status
reserved
value
insufficient data
snapshot 1 of 1 · · m4
gate ETA reserved

reserved: needs snapshot history (1 snapshot exists)

status
reserved
value
insufficient history
snapshot 1 of 1 · · m4
methodology gate snapshot 1 of 1 · · m4
commit weeks
52
citation years
4
shipped
3
reserved
3

shipped

  • recency-swing
  • commit-sharpe
  • commit-changepoint

reserved

  • code-leads-citation-lag
  • axis-alpha
  • gate-eta
snapshot 1 of 1 · · m4

Reconstructed history

Letta reconstructed weekly commits35 points, range 1 to 103 commits/wk.
min
1 commits/wk
max
103 commits/wk
latest
2 commits/wk
points
35

Weekly commits over the past year, reconstructed from git history (GitHub commit_activity). This is reconstructed, not a point-in-time capture. Evidaxis captures the Type-2 signals (watchers, issues, dependents) live and never backfills them; those are the moat.

Daily dependents count (unscored)

Letta dependents over time5 points, range 1 to 1 dependents.
min
1 dependents
max
1 dependents
latest
1 dependents
points
5

Downstream packages depending on pypi/letta (deps.dev), captured point-in-time each snapshot. This daily series is unscored. The scored axis in m4 uses weekly partitions.

Measurement states

Letta is under weekly measurement. History: 15 weekly observations; minimum 4. Development velocity axis: measured. Citation axis: measured. Direct-dependents axis: no admitted own package; not measured. Gate: computed weekly across the cohort; no convergence event this week

Sources

letta-ai/letta development-velocity axis
OpenAlex paper citation-momentum axis

Others in Agent Frameworks

AgentScope Agent Frameworks
2 of 3 axes measurable
70
p100
vel +2.38 cit no axis deps +0.79
axis dials
+2.38 n/a +0.79
AutoGen Agent Frameworks
2 of 3 axes measurable
45
p40
vel +0.07 cit no axis deps -0.83
axis dials
+0.07 n/a -0.83
CAMEL Agent Frameworks
3 of 3 axes measurable
42
p27
vel -1.78 cit +0.00 deps -0.05
axis dials
-1.78 +0.00 -0.05
CrewAI Agent Frameworks
2 of 3 axes measurable
48
p53
vel -0.79 cit no axis deps +0.49
axis dials
-0.79 n/a +0.49
DSPy Agent Frameworks
2 of 3 axes measurable
44
p33
vel -0.28 cit no axis deps -0.67
axis dials
-0.28 n/a -0.67
Google ADK Agent Frameworks
2 of 3 axes measurable
54
p67
vel +0.67 cit no axis deps +0.00
axis dials
+0.67 n/a +0.00

Full Agent Frameworks cohort →

Direct-dependents momentum (deps.dev)

Direct-dependents axis: no admitted own package; not measured.

Coverage state
out_of_panel
Cohort z
no axis
OLS slope
n/a
Theil-Sen slope
n/a
Latest direct dependents
n/a
Confirmed-clean points
n/a
Reconstructed history points
n/a
As-of partition
n/a
Fragility veto
n/a
Rising vote
no

Source: deps.dev (Google), CC-BY 4.0. Modified: aggregated to system-level counts and momentum scores.

Axis definition · Snapshot axis correlations

entity_id e_15264R968MN methodology m4 snapshot ad5e404d4f82 period 2026-w41 record JSON ↓ source snapshot

Score derived from public data on Evidaxis methodology m4, never edited by hand. Cite as: “Evidaxis, Letta, entity e_15264R968MN, snapshot 2026-w41.”

Durable reference (format-independent): urn:evidaxis:claim:e_15264R968MN:m4:2026-10-10